Fits select 2002-2005 Subaru Impreza WRX and Saab 9-2X Aero (EJ205).

The Manley Platinum Series piston set is engineered for high-performance engine builds requiring tight tolerances and superior material strength. These pistons are forged from domestic 2618 aluminum alloy and feature specialized cam and barrel skirt profiles designed to reduce cylinder wall friction while maintaining stability at high RPM. Every piston undergoes a unique fixturing process where the skirt turning and ring groove machining are completed in a single operation, ensuring absolute squareness for optimized ring seal and power retention.

• Manufacturer Part Number: 615000C-4
• Bore Size: 92mm (Standard)
• Compression Ratio: 8.5:1 (with standard head gasket)
• Piston Style: Dish
• Material: 2618 High-Strength Forged Aluminum Alloy
• Wrist Pins: Premium Chrome Moly steel pins included
• Coating: Moly skirt coating for reduced friction and scuffing protection
• Includes high-quality piston ring set
• Engineered for EJ205 standard stroke applications

Fits 2008-2014 Mitsubishi Lancer Evolution GSR, MR, and MR Touring models equipped with the 4B11T engine. This Manley Platinum Series piston set is engineered for high-performance builds, providing an 86.5mm (+.5mm) oversize bore and a 9.0:1 compression ratio.

Forged from domestic 2618 aluminum alloy, these pistons are designed to withstand the extreme cylinder pressures and heat generated by turbocharged applications. Manley's signature manufacturing process uses specialized fixturing to perform skirt turning and ring groove machining in a single operation, ensuring ultimate squareness and a superior ring seal. Each set includes premium Chrome Moly wrist pins and high-quality piston rings to complete your short block assembly.

• Material: High-strength domestic 2618 alloy forgings.
• Wrist Pins: Premium Chrome Moly pins included.
• Skirt Design: Optimized cam and barrel profiles for reduced friction and cylinder wall wear.
• Precision Machined: Exacting ring land and groove tolerances for maximum power and durability.
• Complete Kit: Includes four pistons, rings, and wrist pins.

Technical Specifications:
Bore Size: 86.5mm (+.5mm Oversize)
Compression Ratio: 9.0:1
Engine Fitment: Mitsubishi 4B11T
Manufacturer Part Number: 614005C-4

Fits 2008-2014 Mitsubishi Lancer Evolution GSR, MR, and MR Touring (4B11T).

Manley Platinum Series pistons are engineered for the extreme thermal and mechanical loads of high-boost 4B11T engines. Forged from high-strength domestic 2618 aluminum alloy, these 86mm standard bore pistons feature a 9.0:1 compression ratio and a dish design optimized for combustion stability. Each piston is manufactured using a unique fixturing process that machines the skirt and ring grooves in a single operation, ensuring perfect squareness for superior ring seal and reduced blow-by.

• Engine Application: 4B11T (Mitsubishi Evolution X)
• Material: Forged 2618 aluminum alloy for maximum durability
• Bore Diameter: 86mm (Standard Bore)
• Compression Ratio: 9.0:1
• Wrist Pins: Included premium Chrome Moly steel pins
• Skirt Coating: Moly-coated to reduce friction and cylinder wall scuffing
• Manufacturing: Single-operation skirt and ring groove machining for precision squareness
• MPN: 614000C-4

This kit includes a complete set of pistons, piston rings, and wrist pins. Trusted by professional engine builders and tuners, Manley Platinum Series pistons provide the structural integrity required for high-horsepower Mitsubishi applications.

Engineered for high-performance Subaru EJ257 builds, this Manley Platinum Series piston set is designed to withstand the rigors of increased boost and RPM. These pistons are forged from high-strength domestic 2618 alloy and feature a 99.75mm bore (+.25mm overbore) with an 8.5:1 compression ratio dish design. Each piston is manufactured using Manley's unique fixturing, which allows for skirt turning and ring groove machining in a single operation to ensure perfect squareness and superior ring seal.

• Engine Compatibility: Fits Subaru EJ257 2.5L engines.
• Material: Forged 2618 aluminum alloy for maximum structural integrity.
• Wrist Pins: Includes premium Chrome Moly wrist pins for reliable operation.
• Precision Machining: Cam and barrel skirt profiles optimized for power and reduced cylinder wall wear.
• Enhanced Sealing: Exacting ring land and groove tolerances for improved combustion seal and power output.
• Specifications: 99.75mm bore size, 8.5:1 compression ratio, includes matching rings.
• Part Number: 612202C-4

Fits 2004-2012 Subaru Impreza WRX STI models with the EJ257 engine (including Limited and Special Edition).

The Manley Platinum Series piston set is engineered for high-performance engine builds where reliability and ring seal are critical. Forged from domestic 2618 aluminum alloy, these pistons utilize a specialized manufacturing process where skirt turning and ring groove machining are performed in a single operation. This ensures absolute squareness between the groove and the skirt, resulting in superior ring sealing and consistent power delivery. Each piston features a proven cam and barrel skirt profile designed to reduce friction while maintaining stability within the cylinder bore.

• Engine Series: Subaru EJ257
• Bore Diameter: 99.75mm (+.25mm overbore)
• Compression Ratio: 9.8:1
• Stroke: Standard
• Material: 2618 Forged Aluminum Alloy
• Wrist Pins: Premium Chrome Moly
• Coating: Moly Skirt Coating
• Manufacturer Part Number: 612102C-4

Each set includes matching piston rings and high-strength wrist pins to ensure a complete, precision-matched installation for your EJ257 build.

Fits select 2004-2012 Subaru Impreza WRX and WRX STI models with the EJ257 engine.

The Manley Platinum Series piston set is engineered for professional engine builders and tuners demanding high-strength components for high-boost EJ257 applications. Forged from domestic 2618 aluminum alloy, these pistons are designed to handle the thermal and mechanical stresses of increased power levels while maintaining a standard 99.5mm bore. This set features a 9.8:1 compression ratio and a dish-style crown, optimized for improved combustion efficiency.

Manley utilizes a specialized manufacturing process where skirt turning and ring groove machining are performed in a single operation. This ensures ultimate squareness between the ring groove and the piston skirt, resulting in a superior ring seal and reduced blow-by. Each piston is finished with a moly skirt coating to minimize friction and prevent scuffing during cold starts and high-load operation.

• Manufacturer Part Number: 612100C-4
• Material: High-strength 2618 forged aluminum alloy
• Bore Size: 99.5mm (Standard Bore)
• Compression Ratio: 9.8:1
• Piston Style: Dish crown
• Wrist Pins: Premium Chrome Moly pins included
• Features: Moly-coated skirts and precision-machined ring lands
• Manufacturing: Single-operation machining for maximum geometric accuracy

Fits 2004-2012 Subaru Impreza WRX STI (EJ257) including Limited and Special Edition models.

Engineered for high-output EJ257 builds, the Manley Platinum Series piston set is designed to handle the increased cylinder pressures of performance turbocharged applications. These 100.5mm (+.5mm overbore) pistons are forged from domestic 2618 aluminum alloy for maximum structural integrity. Manley utilizes a unique fixturing process that machines the skirt and ring grooves in a single operation, ensuring perfect squareness for superior ring seal and longevity.

• Forged 2618 Alloy: High-strength material specifically selected for high-boost performance and durability.
• Optimized Profiles: Precision-machined cam and barrel skirt profiles reduce friction and minimize cylinder wall wear.
• Superior Ring Seal: Strict adherence to ring land and groove tolerances results in enhanced compression and more power.
• Premium Hardware: Includes high-quality Chrome Moly wrist pins and a complete high-performance piston ring set.

• Manufacturer Part Number: 612005C-4
• Bore Size: 100.5mm (+.5mm over stock)
• Compression Ratio: 8.5:1
• Piston Style: Dish
• Stroke: Standard
• Material: 2618 Forged Aluminum
• Wrist Pins: Included (Chrome Moly)

Fits select 2004-2012 Subaru Impreza WRX STI, Limited, and Special Edition models equipped with the EJ257 engine.

The Manley Platinum Series Piston Set is engineered for professional-grade EJ257 builds, utilizing domestic 2618 alloy forgings to ensure superior structural integrity under high boost and heat. These pistons are designed for a 99.75mm (+.25mm) bore and standard stroke, featuring an 8.5:1 compression ratio dish profile that balances power and reliability. Manley’s specialized manufacturing process utilizes unique fixturing to machine the skirt and ring grooves in a single operation, maintaining critical squareness for optimal ring seal and reduced blow-by.

• 2618 Forged Alloy: High-strength material choice for extreme performance applications.
• Precise Ring Sealing: Adheres to strict standards for ring land and groove squareness to maximize cylinder pressure and power.
• Optimized Skirt Profiles: Engineered cam and barrel profiles provide stability while remaining gentle on cylinder walls to prolong engine life.
• Premium Wrist Pins: Includes high-quality Chrome Moly wrist pins as standard.
• Technical Specifications: 99.75mm bore size, standard stroke, and 8.5:1 compression ratio.

• Manufacturer Part Number: 612002C-4
• Piston Material: 2618 Forged Aluminum
• Piston Style: Dish
• Included: Piston rings and Chrome Moly wrist pins

Fits 2004 and newer Subaru WRX STi models equipped with the EJ257 engine.

Manley Platinum Series pistons are engineered for high-output EJ257 builds, providing the structural integrity required for increased boost and high RPM. Forged from domestic 2618 aluminum alloy, these pistons utilize specialized cam and barrel skirt profiles that maximize power while minimizing wear on cylinder walls. This set features a 99.55mm bore (+0.05mm over stock) and a dish design that maintains an 8.5:1 compression ratio, ideal for forced induction applications.

Each piston is manufactured using Manley's unique fixturing process, which allows for skirt turning and ring groove machining in a single operation. This ensures perfect squareness between the ring groove and the skirt, resulting in a superior ring seal and reduced blow-by. The kit includes premium Chrome Moly wrist pins and a high-performance ring set to complete your bottom-end refresh or build.

• Manufacturer Part Number: 612001C-4
• Engine Fitment: Subaru EJ257 (2.5L)
• Bore Size: 99.55mm (+0.05mm)
• Compression Ratio: 8.5:1
• Stroke: Standard (STD)
• Material: 2618 Forged Aluminum Alloy
• Wrist Pins: Premium Chrome Moly included
• Features: Moly coated skirts and precision-machined ring lands

This Manley Platinum Series single replacement piston is engineered for the 2004-2021 Subaru WRX STI equipped with the EJ257 engine. Designed for professional engine builders and high-performance applications, this piston features a 99.50mm Grade B bore and is intended for use with a standard 79mm stroke crankshaft.

Forged from high-strength domestic 2618 aluminum alloy, each piston utilizes Manley’s unique fixturing process. This allows for skirt turning and ring groove machining in a single operation, ensuring maximum squareness between the ring land and the skirt. The precision-machined cam and barrel skirt profiles are designed to generate substantial power while minimizing wear on the cylinder walls.

• Series: Platinum Series
• Bore Size: 99.50mm (Grade B)
• Stroke: 79mm (STD)
• Material: 2618 Forged Aluminum Alloy
• Wrist Pin: Premium Chrome Moly (included)
• Included Components: Single piston, piston rings, and wrist pin
• MPN: 612000CB-1

Fits 2004-2012 Subaru Impreza WRX STI, Limited, and Special Edition models equipped with the EJ257 engine.

Engineered for professional engine builders and high-performance tuners, this Manley Platinum Series piston set is designed for the EJ257 power plant. Each piston is manufactured from domestic 2618 alloy forgings to ensure superior strength under high boost and extreme combustion pressures. Manley utilizes a unique manufacturing process where skirt turning and ring groove machining are performed in a single operation, guaranteeing ultimate squareness between the ring groove and the skirt for a superior seal.

This set includes premium Chrome Moly wrist pins and high-quality piston rings. The cam and barrel skirt profiles are specifically optimized to maximize power output while minimizing wear on the cylinder walls.

• Manufacturer Part Number: 612000C-4
• Bore Size: 99.5mm (Standard)
• Compression Ratio: 8.5:1
• Piston Style: Dish
• Material: 2618 Forged Aluminum Alloy
• Wrist Pins: Premium Chrome Moly included
• Stroke: Standard Stroke

Designed specifically for Toyota 2JZGTE engines, this Manley Platinum Series piston set delivers the strength and precision required for high-performance builds. These pistons are manufactured from domestic 2618 alloy forgings, providing a high-strength foundation that handles the extreme cylinder pressures of forced induction applications.

Manley employs a unique manufacturing process where the skirt turning and ring groove machining are performed in a single operation. This ensures ultimate squareness, which is critical for maintaining a consistent ring seal and maximizing power. The cam and barrel skirt profiles are engineered to generate substantial power while remaining gentle on cylinder walls, even under heavy load. Every set includes premium Chrome Moly wrist pins and a high-performance ring set to ensure a complete and reliable installation.

• Engine Fitment: Toyota 2JZGTE
• Bore Size: 86.5mm (+.5mm oversized)
• Compression Ratio: 10.0:1
• Piston Style: Flat Top
• Material: 2618 Forged Aluminum Alloy
• Wrist Pins: Premium Chrome Moly
• Included Hardware: Complete piston set, ring set, and wrist pins
• Manufacturer Part Number: 609105C-6

Fits 1993-1998 Toyota Supra Twin Turbo (2JZGTE).

The Manley Platinum Series piston set is engineered for high-output 2JZGTE builds that demand superior structural integrity and precise tolerances. Forged from domestic 2618 aluminum alloy, these pistons utilize advanced cam and barrel skirt profiles to optimize power delivery while remaining gentle on cylinder walls. Manley’s specialized fixturing allows for skirt turning and ring groove machining in a single operation, ensuring absolute squareness for a superior ring seal and improved blow-by control.

• Manufacturer Part Number: 609005C-6
• Bore Size: 86.5mm (+0.5mm Oversize)
• Compression Ratio: 8.5:1
• Piston Style: Dish
• Material: 2618 Forged Aluminum Alloy
• Wrist Pins: Premium Chrome Moly steel included
• Ring Lands: Precision-machined for enhanced seal and durability
• Skirt Coating: Moly coated for reduced friction

Fits 1993-1998 Toyota Supra Turbo models equipped with the 2JZGTE engine.

The Manley Platinum Series piston set is engineered for professional engine builders and tuners demanding high-strength components for forced induction applications. These pistons are manufactured from domestic 2618 aluminum alloy forgings, providing the structural integrity required for high-boost 2JZGTE builds. Each piston features a 9:1 compression ratio dish design and is finished with moly skirt coatings to reduce friction and protect cylinder walls during break-in and operation.

Manley utilizes a unique manufacturing process where skirt turning and ring groove machining are performed in a single operation. This ensures ultimate squareness between the ring groove and the skirt, resulting in a superior ring seal and consistent power delivery. The included premium Chrome Moly wrist pins and high-performance piston rings provide a complete, drop-in solution for standard 86mm bore blocks.

• Engineered from high-strength 2618 aluminum alloy forgings
• 86mm standard bore with a 9:1 compression ratio dish
• Moly-coated skirts for reduced friction and improved wear resistance
• Precision-machined cam and barrel skirt profiles
• Includes premium Chrome Moly wrist pins and high-performance rings
• Manufacturer Part Number: 609000C-6

Fits 1993-2006 Mitsubishi Lancer Evolution, Eclipse, Eagle Talon, and Plymouth Laser (7-Bolt 4G63T).

Manley Platinum Series pistons are engineered for high-output 7-bolt 4G63T builds that demand superior strength and precision. Forged from domestic 2618 aluminum alloy, these +1mm overbore (86mm) pistons feature a dish design specifically to achieve an 8.5:1 compression ratio, making them an ideal choice for high-boost forced induction applications. Each piston is manufactured using Manley's unique fixturing process, which allows skirt turning and ring groove machining in a single operation to ensure perfect squareness and an optimal ring seal.

These pistons utilize proven cam and barrel skirt profiles that reduce friction and cylinder wall wear while maintaining stability under extreme combustion pressures. This set includes premium Chrome Moly wrist pins and a high-performance ring set to provide a complete rotating assembly solution for professional engine builders and tuners.

• Bore Diameter: 86.00mm (+1.00mm overbore)
• Compression Ratio: 8.5:1
• Engine: Mitsubishi 4G63T (7-Bolt)
• Material: 2618 Forged Aluminum Alloy
• Wrist Pins: Included (Premium Chrome Moly)
• Piston Rings: Included
• Manufacturer Part Number: 606010C-4

Fits select 1993-2006 Mitsubishi, Eagle, and Plymouth models with the 7-bolt 4G63T engine, including Lancer Evolution VIII/IX, Eclipse GST/GSX, and Talon TSi.

Manley Platinum Series pistons are engineered for high-output engine builds where durability and ring seal are critical. These pistons are manufactured from domestic 2618 alloy forgings and utilize a unique fixturing process that allows skirt turning and ring groove machining in a single operation. This ensures ultimate squareness between the ring groove and the skirt for optimized power and longevity. Each set features proven cam and barrel skirt profiles to minimize friction while remaining gentle on cylinder walls.

• Manufacturer Part Number: 606005C-4
• Material: Domestic 2618 high-strength forged aluminum alloy
• Bore Size: 85.5mm (+0.5mm oversize)
• Compression Ratio: 8.5:1 (Dish)
• Wrist Pins: Premium Chrome Moly tool steel pins included
• Skirts: Moly coated for reduced friction and scuffing resistance
• Includes: Piston rings, wrist pins, and locks

Fits select 1993-2006 Mitsubishi Lancer Evolution (Evo 8/9), Eclipse, Eagle Talon, and Plymouth Laser models equipped with the 7-bolt 4G63T engine.

Manley Platinum Series pistons are engineered for professional engine builders and tuners demanding high-stress durability in forced induction environments. Forged from domestic 2618 aluminum alloy, these 85mm standard bore pistons are built to handle high boost levels while maintaining structural integrity. The 8.5:1 compression ratio dish design provides an ideal combustion chamber volume for high-performance tuning on the 4G63 platform.

Precision is central to the Platinum Series. Manley utilizes a unique fixturing process that allows for skirt turning and ring groove machining in a single operation. This ensures ultimate squareness between the ring grooves and the skirt, which is critical for achieving a perfect ring seal and maximum power output. The cam and barrel skirt profiles are specifically designed to reduce friction and cylinder wall wear without compromising stability under load.

• Manufacturer Part Number: 606000C-4
• Bore Size: 85mm (Standard)
• Compression Ratio: 8.5:1
• Piston Material: Forged 2618 aluminum alloy
• Wrist Pins: Premium Chrome Moly wrist pins included
• Rings: High-quality piston rings included
• Finish: Moly skirt coating for reduced friction

Fits Ford 5.0L Modular Coyote V8 engines (5.0L).

Manley Platinum Series pistons are engineered for high-performance builds, utilizing domestic 2618 aluminum alloy forgings for maximum strength under high-RPM or forced induction conditions. These pistons feature Manley's signature cam and barrel skirt profiles, specifically designed to optimize power while minimizing friction and cylinder wall wear.

Through a unique manufacturing process, Manley machines the skirt profiles and ring grooves in a single operation. This ensures perfect squareness between the ring groove and the skirt, which is critical for maintaining a superior ring seal and maximizing combustion pressure. The exacting standards applied to the ring lands and grooves further enhance seal integrity for consistent power delivery.

• Manufacturer Part Number: 598000C-8
• Series: Platinum Series
• Material: 2618 Forged Aluminum Alloy
• Bore: 3.630in
• Compression Height: 1.165in
• Piston Volume: 3.75 CC
• Includes premium Chrome Moly wrist pins as standard
• Precision-machined ring lands and grooves for enhanced sealing

Fits 2018-2024 Ford Coyote (5.0L) DOHC engines.

Manley Platinum Series Extreme Duty pistons are engineered for professional engine builders and tuners who demand superior durability in high-horsepower applications. Forged from domestic 2618 aluminum alloy, these pistons are built to withstand extreme cylinder pressures. Each piston in this set features a moly skirt coating to reduce friction and minimize cylinder wall wear, providing a significant advantage in forced induction or high-RPM naturally aspirated builds.

Manley utilizes a unique manufacturing process where skirt turning and ring groove machining are performed in a single operation. This ensures ultimate squareness between the ring groove and the skirt for a superior ring seal and consistent power. The optimized cam and barrel skirt profiles provide necessary stability while remaining gentle on the cylinder walls. This set comes standard with premium Chrome Moly wrist pins and exacting ring land tolerances.

• Material: 2618 Forged Aluminum Alloy
• Bore Size: 3.662in
• Piston Volume: +1cc Dish
• Compression Ratio: 11:1
• Wrist Pins: Premium Chrome Moly included
• Finish: Moly coated skirts
• Manufacturer Part Number: 595800CE-8

Fits 2018-2024 Ford Coyote DOHC engines (5.0L).

Manley Platinum Series pistons are engineered for high-output builds requiring superior structural integrity and precise tolerances. Forged from domestic 2618 aluminum alloy, these pistons utilize a unique manufacturing process where skirt turning and ring groove machining are performed in a single operation. This ensures ultimate squareness between the ring groove and the skirt for an optimized ring seal and increased power output.

The Platinum Series features application-specific cam and barrel skirt profiles that reduce friction and wear on cylinder walls while maintaining stability under high thermal loads. Each set includes premium Chrome Moly wrist pins as standard, designed to withstand the rigors of high-RPM naturally aspirated or forced induction applications.

• Manufacturer Part Number: 595800C-8
• Material: 2618 High-Strength Forged Aluminum Alloy
• Bore Size: 3.662in
• Piston Head Volume: +1cc Dish
• Compression Ratio: 11:1
• Wrist Pins: Included Premium Chrome Moly
• Coating: Moly skirt coatings for reduced friction
• Precision machined ring lands and grooves for enhanced sealing

Fits select 1996-2008 Ford Mustang, F-150, F-250/F-350 Super Duty, and GT (4.6L / 5.4L).

Manley Platinum Series pistons are engineered for professional engine builders and tuners demanding high-strength components for Ford Modular engines. These pistons are manufactured from domestic 2618 aluminum alloy forgings, providing the structural integrity required for high-horsepower SOHC and DOHC applications. Each piston features a 18cc spherical dish and a 3.572-inch bore size.

Using a unique fixturing process, Manley performs skirt turning and ring groove machining in a single operation. This ensures maximum squareness between the ring groove and the skirt, promoting superior ring seal and minimizing blow-by. The cam and barrel skirt profiles are designed to optimize power delivery while reducing friction and wear on cylinder walls. This set includes premium Chrome Moly wrist pins for reliable performance under heavy loads.

• Manufacturer Part Number: 594220C-8
• Material: Forged 2618 Aluminum Alloy
• Bore Size: 3.572 inches
• Dish Volume: 18cc Spherical Dish
• Wrist Pins: Premium Chrome Moly included
• Coatings: Moly skirt coating for reduced friction
• Application: Compatible with 2v and 4v cylinder heads

Fits select 1996-2008 Ford Mustang, F-150, F-250/F-350 Super Duty, and GT (4.6L / 5.4L).

Manley Platinum Series pistons are engineered for professional engine builders and tuners working with Ford 4.6L and 5.4L SOHC/DOHC modular platforms. These dish pistons are forged from domestic 2618 aluminum alloy, providing the structural integrity required for high-horsepower applications. Each piston features specifically engineered cam and barrel (skirt) profiles that optimize power delivery while minimizing wear on cylinder walls.

Manufacturing precision is central to the Platinum Series. Manley utilizes a unique fixturing process that allows for skirt turning and ring groove machining in a single operation, ensuring absolute squareness between the ring groove and the skirt. This results in superior ring seal and increased power output. Every set includes premium Chrome Moly wrist pins as standard hardware.

• Manufacturer Part Number: 594100C-8
• Material: Domestic 2618 alloy forgings
• Wrist Pins: Included Chrome Moly pins
• Design: Dish piston for 2v and 4v applications
• Manufacturing: Single-operation machining for precise ring groove squareness
• Coating: Moly skirt coatings included on select part numbers

Fits 2004-2012 Subaru Impreza WRX STI, WRX STI Limited, and WRX STI Special Edition (EJ257).

This Manley Performance Piston Ring Set is engineered specifically for Subaru EJ257 engines featuring a 99.75mm bore (+.25mm oversized). These rings are designed to provide the precise combustion seal and oil control necessary for high-performance turbocharged boxer engine builds. This conventional ring set utilizes high-grade materials to ensure durability under extreme thermal and mechanical loads.

• Bore Diameter: 99.75mm (+.25mm Oversize)
• Ring Dimensions: 1.2mm x 1.2mm x 2.0mm
• Top Ring: High-performance ductile iron with plasma-moly inlay for heat resistance
• Second Ring: Reverse twist taper face or Napier-style for superior oil scraping
• Oil Ring: 3-piece design for consistent lubrication control
• Designed for compatibility with Manley Performance pistons
• Manufacturer Part Number: 46997-4

Fits 2004-2011 Subaru Impreza WRX STI, WRX STI Limited, and WRX STI Special Edition.

This Manley Performance Sport Compact series standard piston ring set is engineered to provide a reliable, high-integrity seal for your engine build. Specifically designed for 99.5mm bore applications, these rings utilize advanced materials to withstand the thermal and mechanical demands of performance driving. The conventional set configuration features a ductile iron top ring with a plasma-moly inlay for superior wear resistance and friction reduction.

• Bore Size: 99.5mm
• Top Ring: 1.2mm Ductile Iron with Plasma-Moly Inlay
• Second Ring: 1.2mm Reverse Twist Cast Iron Taper Face or Napier Style
• Oil Ring: 2.0mm 3-Piece Design
• Construction: High-performance materials designed for durability and optimal oil control
• Manufacturer Part Number: 46995-4

Ensure a precise, durable seal for your engine build with this Manley 87.5mm File Fit Piston Ring Set (MPN 46875-4). These rings are engineered for high-performance applications, allowing builders to file the ring ends for custom gaps that accommodate specific thermal expansion requirements. The set features high-performance ductile iron top rings with a plasma-moly inlay for superior wear resistance and cylinder wall lubrication.

This conventional set utilizes reverse twist cast iron taper face or Napier-style second rings to optimize oil control and compression sealing. The 3-piece oil ring assembly provides standard 7-11lb tension, making it a versatile choice for various engine configurations. Manley's meticulous tolerances ensure compatibility and consistent performance across heavy-duty engine builds.

• Bore Size: 87.5mm
• Ring Thickness: 1.2mm (Top), 1.2mm (Second), 2.8mm (Oil)
• Top Ring Material: Ductile Iron with Plasma-Moly Inlay
• Oil Ring Tension: Standard (7-11 lbs)
• Configuration: File Fit for custom gapping
• Manufacturer Part Number: 46875-4

Fits select 1993-2006 Eagle, Honda, Mitsubishi, and Plymouth vehicles, including Honda CR-V (K24/K20 Hybrid), Mitsubishi Lancer Evolution, and Mitsubishi Eclipse.

These Manley Performance piston ring sets are engineered to provide a superior seal and long-term durability for high-performance engine builds. Designed for an 87mm bore, this set is a staple for builders looking to optimize compression and oil control in Honda K-series "Frankenstein" builds (K24A block with K20A/A2/A3 heads) and Mitsubishi 4G63-based platforms. These conventional sets utilize premium materials and specific geometries to handle the stresses of spirited driving and motorsport applications.

• Top Rings: High-performance ductile iron construction with a plasma-moly inlay for heat resistance and rapid seating.
• Second Rings: Napier-style or reverse twist taper face design to provide superior oil scraping and minimize blow-by.
• Oil Rings: 3-piece assembly designed for consistent tension and efficient lubrication of the cylinder walls.
• Bore Size: 87mm
• Part Number: 46870-4

Fits select 1993-2014 Eagle Talon, Hyundai Genesis Coupe, and Mitsubishi Eclipse, Galant, and Lancer Evolution models (2.0T).

This Manley Performance piston ring set is engineered for high-performance engine builds requiring a durable and reliable seal. These conventional sets feature ductile iron top rings with a plasma-moly inlay to withstand high heat and pressure, paired with reverse twist cast iron taper face or Napier-style second rings for superior oil control. Each kit includes a three-piece oil ring assembly to ensure consistent lubrication and optimal cylinder wall contact.

• Manufacturer Part Number: 46865-4
• Bore Size: 86.5mm
• Top Ring Width: 1.2mm
• Second Ring Width: 1.2mm
• Oil Ring Width: 2.8mm
• Top Ring Material: Ductile Iron with Plasma-Moly Inlay
• Second Ring Style: Napier or Reverse Twist
• Set Type: Three-piece oil ring configuration

Fits select 1990-2014 Acura RSX, Eagle Talon, Honda Civic, Hyundai Genesis Coupe, Mitsubishi Eclipse, Mitsubishi Lancer Evolution, and Plymouth Laser (2.0T).

Manley Performance piston ring sets are meticulously engineered to provide a reliable, high-strength seal for performance engine builds. This set (MPN 46860-4) is designed to withstand the increased cylinder pressures of high-horsepower and forced induction applications, ensuring optimal compression and superior oil control.

• Engineered for precise fitment and optimized heat transfer between the piston and cylinder wall.
• Features high-performance ductile iron top rings with a plasma-moly inlay for a durable, long-lasting seal.
• Includes Napier-style second rings for enhanced oil scraping and superior crankcase pressure management.
• Ideal for both conventional engine refreshes and high-stress turbocharged or nitrous applications.
• Includes a three-piece oil ring assembly for maximum lubrication control.
• Manufacturer Part Number: 46860-4

Whether you are rebuilding a K-series or a 4G63, Manley rings deliver the exact tolerances required for professional-grade engine assembly and long-term reliability.

Fits select 1990-2006 Mitsubishi Eclipse and Lancer Evolution, Eagle Talon, and Plymouth Laser (4G63/4G63T).

Maintain a reliable cylinder seal and optimal compression with the Manley Performance Standard Piston Ring Set. Engineered for the 4G63 and 4G63T engine platforms, these conventional-style sets provide the durability required for performance rebuilds. These rings are designed to drop into standard bore applications, offering a precise fit and long-lasting oil control.

• Manufacturer Part Number: 46855-4
• Top Ring: High-performance ductile iron with a plasma-moly inlay for reduced friction and heat resistance
• Second Ring: Reverse twist cast iron taper face or Napier style for efficient oil scraping
• Oil Ring: Three-piece assembly designed for superior oil management
• Compatibility: Engineered for standard bore 4G63 and 4G63T engine blocks

Fits select 1996-2008 Ford Mustang, F-150, F-250/F-350 Super Duty, and GT (4.6L / 5.4L) engines. This set of Manley Performance ductile iron top rings is engineered for Ford Modular SOHC and DOHC (2-valve and 4-valve) applications requiring a 3.582in bore.

These conventional-style top rings feature a plasma-moly inlay to ensure a reliable seal and excellent heat resistance under high-performance conditions. Designed for engine builders who require precise tolerances and proven materials, these rings are an essential component for refreshing or upgrading 4.6L and 5.4L powerplants.

• Bore Size: 3.582in
• Material: Ductile Iron with Plasma-Moly Inlay
• Engine Compatibility: Ford 4.6L / 5.4L SOHC and DOHC
• Quantity: Set of 8 rings
• Manufacturer Part Number: 46630-8