Fits select Ford 3.5L EcoBoost 6-cylinder engines.

These GSC Power-Division valve guides are engineered from high-quality manganese bronze, providing superior heat transfer and increased lubricity compared to standard factory guides. Designed for high-performance and heavy-duty applications, they offer exceptional wear resistance and are suitable for both intake and exhaust valve positions.

• Material: Manganese Bronze for improved thermal conductivity and durability
• Application: Universal fitment for both intake and exhaust valve locations
• Quantity: Full set of 12 guides
• Manufacturer Part Number: 3018-12

Fits 2010-2014 Hyundai Genesis Coupe (2.0T).

GSC Power-Division manganese bronze intake valve guides are engineered for high-performance Hyundai G4KF Theta engines that require tighter tolerances and better heat dissipation than factory components can provide. Manganese bronze is a superior material for valve guides in turbocharged applications because of its excellent thermal conductivity and high lubricity, which reduces friction and wear on valve stems during high-RPM operation.

• Manufactured from high-quality manganese bronze for enhanced wear resistance
• Precision machined to ensure exact fitment and consistent valve stem clearance
• Designed specifically for the intake side of the cylinder head
• Essential for performance builds and cylinder head refreshes
• Includes a complete set of 8 valve guides
• Manufacturer Part Number: 3016-8

Vehicle Fitment

Fits 2010-2014 Hyundai Genesis Coupe (2.0T).

GSC Power-Division manganese bronze exhaust valve guides are engineered to withstand the extreme thermal loads and tight tolerances required in the Hyundai G4KF Theta engine. These guides offer superior heat dissipation and significantly higher wear resistance compared to standard cast iron or OE equivalents, making them a critical upgrade for high-performance builds and turbocharged applications where valve guide stability is paramount.

• Material: High-grade Manganese Bronze for improved lubricity and heat transfer
• Application: Exhaust side specifically machined for Theta engine heads
• Quantity: Complete set of 8 guides
• Engine Compatibility: Hyundai G4KF 2.0T
• Manufacturer Part Number: 3015-8

Designed for high-performance Mitsubishi 4B11T engine builds, these GSC Power-Division intake valve guides feature a "stopper style" design. This integrated shoulder provides a positive mechanical stop against the cylinder head, preventing the guide from migrating or dropping under the extreme heat and vibration common in high-boost or high-RPM applications.

Precision-machined to exacting tolerances, these guides offer a superior wear surface compared to standard OEM components, making them an essential upgrade during a cylinder head rebuild. They are direct replacements for factory intake guides, ensuring consistent valve stem alignment and improved heat transfer.

• Specifically engineered for the Mitsubishi 4B11T engine platform
• Stopper style shoulder prevents guide movement in the cylinder head
• Precision machined for tight tolerances and consistent valve stem clearance
• Complete set of 8 intake valve guides
• Manufacturer Part Number: 3014-8

Fits select 1990-2006 Mitsubishi, Eagle, and Plymouth models equipped with the 4G63 engine, including Eclipse, Lancer Evolution, Talon, and Galant VR-4.

GSC Power-Division Manganese Bronze exhaust valve guides are engineered for high-performance 4G63 cylinder heads. Manufactured from a proprietary manganese bronze alloy, these guides offer superior heat transfer and excellent lubricity compared to standard cast iron components. The "Shorty Stopper" design is specifically tailored for high-lift camshaft applications and modified cylinder heads where clearance is critical, ensuring stable valve stem support without compromising port flow.

• Manufacturer Part Number: 3005-8
• Material: Manganese Bronze alloy for reduced friction and improved wear resistance
• Configuration: Exhaust side specific
• Quantity: Set of 8 guides
• Application: Compatible with 4G63-powered platforms

Fits select 1990-2006 Eagle Talon, Mitsubishi Eclipse, Galant VR-4, Lancer Evolution, and Plymouth Laser models equipped with the 4G63 engine.

GSC Power-Division manganese bronze valve guides are engineered as a high-performance replacement for worn factory components. These guides are manufactured from a proprietary manganese bronze alloy, providing superior heat dissipation and lower friction compared to standard cast iron or OEM guides. This material choice is critical for high-RPM and turbocharged applications where valve stem heat must be efficiently transferred to the cylinder head to prevent seizing or accelerated wear.

The "stopper style" design features an integrated shoulder to ensure precise installation depth every time, eliminating the guesswork during the machining process. These intake guides are held to extremely tight tolerances to provide a consistent fit for 4G63 valve stems, ensuring proper valve seating and long-term reliability of the valvetrain.

• Manufacturer Part Number: 3004-8
• Material: Proprietary Manganese Bronze Alloy
• Quantity: Set of 8 Intake Guides
• Style: Stopper (Shouldered) for precise positioning
• Applications: 4G63 Turbo and Non-Turbo (Intake side)

Fits 1990-2006 Mitsubishi Eclipse, Lancer Evolution, Galant VR-4, Eagle Talon, and Plymouth Laser with 4G63 engines.

GSC Power-Division manganese bronze exhaust valve guides are engineered for high-performance cylinder heads where heat dissipation and lubricity are paramount. These guides utilize a stopper style design, which provides a positive stop during installation to ensure consistent seat height and prevents the guide from migrating in the cylinder head under extreme thermal stress.

• CNC machined from high-strength manganese bronze for superior wear resistance
• Stopper style design ensures precise installation depth and prevents guide movement
• Superior heat transfer characteristics compared to OE cast iron guides
• Specifically designed for the exhaust side to withstand higher operating temperatures
• Manufacturer Part Number: 3003-8
• Quantity: Set of 8

Vehicle Fitment

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

GSC Power-Division manganese bronze valve guides are engineered for high-performance 4G63 cylinder heads where heat dissipation and guide wear are critical. These intake guides offer significantly better thermal conductivity than factory cast iron components, allowing for more efficient heat transfer away from the valve stems. The proprietary manganese bronze alloy provides exceptional natural lubricity, reducing friction and minimizing guide wear in high-stress environments, such as high-boost or high-RPM applications.

• Material: High-strength Manganese Bronze alloy
• Application: Intake side only
• Engine Compatibility: Mitsubishi 4G63 16V
• Included: Set of 8 valve guides
• Manufacturer Part Number: 3002-8

Fits select 1990-2006 Mitsubishi Eclipse, Lancer Evolution, Galant VR-4, Eagle Talon, and Plymouth Laser models equipped with the 4G63 engine.

GSC Power-Division manganese bronze exhaust valve guides are engineered for high-performance and racing applications where thermal management is critical. Unlike standard cast iron guides, these manganese bronze components offer significantly better heat dissipation and improved lubricity. This reduces friction and wear on the valve stems, preventing seizing even under the extreme cylinder pressures and temperatures found in high-boost 4G63 builds.

Precision-machined to tight tolerances, these guides ensure stable valve stem alignment for consistent seating and long-term valvetrain reliability. This set is a direct replacement for worn factory guides during a cylinder head refresh or performance build.

• Material: High-grade Manganese Bronze for superior thermal conductivity
• Position: Exhaust side
• Quantity: Set of 8 guides
• Manufacturer Part Number: 3001-8

Fits 2015-2023 Subaru WRX (FA20DIT).

GSC Power-Division oversized intake valves are engineered for high-performance builds requiring increased airflow and superior thermal resistance. These +1mm (35mm) valves provide a larger surface area to optimize intake charges on modified engines. Each valve is forged from high-tensile 21-4N stainless steel alloy, ensuring durability and corrosion resistance under extreme combustion temperatures and high-RPM stress.

• Head Diameter: 35mm (+1mm oversized)
• Material: 21-4N Stainless Steel Alloy
• Finish: Chrome polished stems and swirl-polished heads
• Reduced friction for improved valve guide longevity and airflow efficiency
• Sold as a complete intake set
• Manufacturer Part Number: 2284-8

Fits 2015+ Subaru WRX models equipped with the FA20F engine.

Improve your engine's exhaust flow and durability with this set of eight GSC Power-Division 23-8N series exhaust valves. Specifically engineered for the FA20F platform, these valves feature a 30mm head diameter, representing a +1mm oversize compared to factory units. This increased surface area allows for enhanced cylinder scavenging and improved performance in forced-induction applications where maximizing flow is critical.

• Chrome polished finish for reduced stem-to-guide friction and improved heat resistance
• 30mm head diameter (+1mm oversize) for optimized exhaust flow
• Precision-machined from high-strength alloys to withstand extreme combustion temperatures
• Designed specifically for the Subaru FA20F engine architecture
• Set includes 8 exhaust valves
• Manufacturer Part Number: 2283-8

Fits 2015-2023 Subaru WRX models equipped with the FA20F engine.

These GSC Power-Division intake valves are engineered to withstand the thermal and mechanical stresses of high-performance FA20F builds. Constructed from 21-4N stainless steel, these valves offer superior heat resistance and durability compared to standard OE components. This set features the standard (STD) 34mm head diameter, providing a precise fit for factory seat locations while maintaining optimal airflow characteristics for turbocharged applications.

• Material: High-strength 21-4N Stainless Steel
• Head Diameter: 34mm (Standard Size)
• Application: Subaru FA20F Intake Side
• Quantity: Complete Set of 8 Valves
• Manufacturer Part Number: 2282-8

Fits 2015+ Subaru WRX models equipped with the FA20F engine.

This complete set of 8 GSC Power-Division exhaust valves is engineered to replace worn or damaged factory components in the Subaru FA20F cylinder head. These valves maintain the standard (STD) 29mm head diameter, ensuring compatibility with factory valve seats while offering the durability required for turbocharged applications.

Manufactured to exacting tolerances, these exhaust valves provide the thermal resistance and sealing performance necessary for high-heat cycles common in direct-injection turbo engines. This set is a direct fit for standard cylinder head refreshes and performance builds where OEM sizing is preferred.

• Part Type: Exhaust Valves
• Head Diameter: 29mm (Standard Size)
• Engine Compatibility: FA20F
• Quantity: Set of 8 valves
• Manufacturer Part Number: 2281-8

Fits 2022+ Subaru models equipped with the FA24F 2.4L turbocharged engine.

Optimize your engine's exhaust flow and thermal resilience with this set of eight GSC Power-Division exhaust valves. Designed specifically for the high-performance demands of the Subaru FA24F platform, these valves are precision-machined from a high-temperature alloy to withstand the extreme heat generated in turbocharged applications. The chrome-polished finish reduces friction within the valve guides and helps prevent carbon buildup on the stem, ensuring consistent performance over the life of the engine.

• Direct replacement for standard (STD) size factory exhaust valves
• Manufactured from high-grade alloy for superior heat resistance
• Chrome-polished surface for reduced friction and wear
• Head Diameter: 29mm
• Overall Length: 96.5mm
• Quantity: Set of 8 valves
• Manufacturer Part Number: 2265-8

Fits 2022-2024 Subaru WRX (FA24F).

GSC Power-Division intake valves are engineered to handle the increased thermal loads and high-RPM demands of the turbocharged FA24F engine. These standard-sized valves (36mm head) are precision-machined to ensure a perfect seat seal and optimized airflow, making them an essential upgrade for high-performance builds or a reliable replacement during a cylinder head refresh.

Each valve features a chrome polished finish that reduces friction within the valve guide and helps minimize carbon accumulation on the stem—a critical factor in maintaining performance in direct-injection engines. Manufactured to exacting tolerances, these valves provide the durability required for modified street and track applications.

• Engine Fitment: Subaru FA24F
• Head Diameter: 36.0mm (Standard)
• Overall Length: 104.8mm
• Finish: Chrome Polished
• Stem Type: Standard
• Quantity: Set of 8 Intake Valves
• Manufacturer Part Number: 2262-8

Fits 2022-2024 Subaru models equipped with the FA24F engine. These GSC Power-Division exhaust valves are precision-engineered to withstand the high thermal loads inherent to modern turbocharged boxer engines while optimizing airflow efficiency.

Each valve is manufactured from 23-8N stainless steel for superior heat resistance and durability. The heads are swirl-polished to minimize turbulence during the exhaust stroke, and the stems are finished with a chrome plating to reduce friction and minimize wear against the valve guides. These are standard (STD) size components designed for direct compatibility with the factory cylinder head dimensions.

• Engine Application: Subaru FA24F (2022+)
• Valve Type: Exhaust
• Head Diameter: 29mm (Standard)
• Total Length: 96.5mm
• Material: 23-8N Stainless Steel
• Finish: Chrome Polished
• Quantity: Set of 8 Valves
• Manufacturer Part Number: 2261-8

This set of 10 GSC Power-Division exhaust valves is engineered specifically for the Audi DAZA 2.5L TFSI 5-cylinder engine. Featuring a 28mm head diameter and a standard 101.8mm length, these valves are designed as high-performance replacements for factory components during cylinder head refreshes or complete engine builds.

Constructed with a chrome polished finish, these valves offer superior heat resistance and durability under the extreme thermal loads typical of turbocharged engines. The precision finish helps reduce friction and wear within the valve guides, ensuring consistent performance and valve-to-seat sealing.

• Engine Application: Audi DAZA (2.5L TFSI)
• Head Diameter: 28mm (Standard Size)
• Valve Length: 101.8mm
• Finish: Chrome Polished
• Quantity: Set of 10 Exhaust Valves
• Manufacturer Part Number: 2257-10

This set of 10 GSC Power-Division intake valves is engineered for the Audi DAZA 2.5L TFSI engine. These standard-sized (STD) valves feature a 33.9mm head diameter and a 104mm overall length, serving as a high-quality replacement or upgrade for factory components.

Each valve is finished with a chrome polish to reduce friction and minimize carbon accumulation, ensuring consistent airflow and a reliable seal even under the high thermal loads of a turbocharged 5-cylinder engine. These valves are designed to meet strict tolerances for professional engine builds and cylinder head refreshes.

• Engine Fitment: Audi DAZA (2.5L TFSI)
• Head Diameter: 33.9mm
• Valve Length: 104mm
• Size: Standard (STD)
• Finish: Chrome Polished
• Manufacturer Part Number: 2256-10
• Quantity: Set of 10 intake valves

Fits select Audi V10-5.2L and 2.5L (DAZA) engines.

This GSC Power-Division (P-D) intake valve set is engineered for high-performance Audi powerplants, providing the structural integrity and thermal stability required for demanding valvetrain environments. These valves are manufactured to standard (STD) sizing, featuring a 33.8mm head diameter and a 104.4mm overall length to maintain precise factory geometry while offering improved durability.

Each valve features a chrome polished finish that significantly reduces friction within the valve guide and resists carbon buildup on the tulip. This smooth finish promotes consistent airflow and longevity in both naturally aspirated and high-boost applications. This set of 10 valves is ideal for refreshing cylinder heads or complete engine builds where precision tolerances are non-negotiable.

• Fits Audi V10-5.2L and 2.5L engines
• Head Diameter: 33.8mm
• Overall Length: 104.4mm
• Sizing: Standard (STD)
• Finish: Chrome Polished for reduced friction
• Quantity: Set of 10 intake valves
• Manufacturer Part Number: 2252-10

Upgrade your valvetrain with this set of 10 GSC Power-Division (P-D) exhaust valves, specifically engineered for Audi V10-5.2L engines. These valves are manufactured from a high-strength chrome polished alloy to withstand the extreme thermal loads and high-RPM demands of the V10 platform.

Maintaining a standard (STD) 27mm head diameter and a 101.8mm overall length, these valves serve as a direct-fit replacement for the factory components. The polished finish helps reduce carbon accumulation on the valve face and stem, ensuring consistent sealing and improved exhaust flow over the life of the engine.

• Fits Audi V10-5.2L engines
• Material: Chrome Polished Alloy
• Head Diameter: 27.00mm
• Valve Length: 101.80mm (STD)
• Quantity: Complete set of 10 valves
• Manufacturer Part Number: 2251-10

Designed specifically for the high-output Toyota G16E-GTS three-cylinder engine found in the GR Yaris and GR Corolla, these GSC Power-Division exhaust valves are engineered to handle the increased thermal loads of turbocharged performance applications. These valves feature a standard 32mm head diameter, making them a direct-fit upgrade for factory cylinder heads.

Every valve is chrome polished to provide an ultra-smooth surface finish. This treatment reduces friction within the valve guide and helps prevent carbon buildup on the valve face and stem, maintaining optimal sealing and airflow over the life of the engine. Whether you are performing a precise top-end rebuild or preparing for higher boost levels, these components offer the reliability required for performance driving.

• Fits Toyota G16E-GTS engines (1.6L Turbo)
• Head Diameter: 32mm (Standard Size)
• Finish: Chrome Polished
• Components: 6 Exhaust Valves
• Manufacturer Part Number: 2195-6

Enhance the valvetrain performance of your Toyota G16E-GTS engine with this set of six chrome polished intake valves from GSC Power-Division. These standard-size (STD) valves are designed to provide superior durability and smooth airflow for high-performance builds, replacing worn or factory components with precision-engineered alternatives.

• Engineered specifically for the Toyota G16E-GTS engine
• Head Diameter: 32.8mm (1.291in)
• Total Length: 113.7mm (4.476in)
• Stem Diameter: 5.47mm (0.215in)
• Finish: Chrome Polished
• Quantity: Set of 6 valves
• Manufacturer Part Number: 2192-6

Engineered for the extreme thermal demands of the Ford 5.2L Voodoo and Predator engines, this set of GSC Power-Division Super Alloy exhaust valves provides the durability required for high-performance racing and forced induction applications. These valves are manufactured from a high-grade Super Alloy with a chrome finish to withstand intense exhaust gas temperatures and high-RPM stress without compromising structural integrity.

• Fits Ford 5.2L Voodoo and Predator engines
• Head Diameter: 32.5mm
• Overall Length: 109.8mm (Standard)
• Material: High-temperature Super Alloy construction
• Finish: Chrome-plated stem
• Quantity: Complete set of 8 exhaust valves
• Manufacturer Part Number: 2175-8

Optimized for the high-revving demands of the Ford 5.2L Voodoo and Predator engines, this set of GSC Power-Division P-D series intake valves provides the durability and airflow characteristics required for performance applications. These valves are engineered as a standard-length (121.13mm) replacement or upgrade for the factory valvetrain, ensuring compatibility with OE-style geometry.

Each valve is manufactured from high-tensile materials and features a chrome polished finish. This mirror-like surface treatment significantly reduces friction within the valve guide and resists carbon buildup on the tulip, promoting consistent flow and longevity. With a 38.26mm head diameter, these valves are precision-machined to provide a reliable seal and withstand the thermal stresses of forced induction or high-RPM naturally aspirated operation.

• Manufacturer Part Number: 2172-8
• Series: P-D Chrome Polished
• Valve Type: Intake
• Head Diameter: 38.26mm
• Overall Length: 121.13mm (STD)
• Compatibility: Fits Ford 5.2L Voodoo and Predator Engines
• Quantity: Set of 8

Fits Gen 3 Ford Mustang 5.0L Coyote engines. These GSC Power-Division exhaust valves are specifically engineered to withstand the extreme thermal loads found in high-performance and forced induction applications. Using a specialized Super Alloy material, these valves provide significantly higher heat resistance and durability than standard stainless steel options.

• Part Number: 2165-8
• Head Diameter: 32mm (Standard Size)
• Material: High-temperature Super Alloy
• Application: Ford 5.0L Coyote Gen 3
• Quantity: Set of 8 exhaust valves

Each valve is precision-machined to ensure a perfect seat and optimal flow, providing a reliable solution for builders looking to reinforce the valvetrain in 5.0L Coyote platforms without changing factory valve sizing.

Upgrade your Ford Mustang Gen 3 Coyote valvetrain with this set of GSC Power-Division P-D exhaust valves. These standard-sized 32mm valves are engineered specifically for the 5.0L platform, offering the durability and precision required for high-performance builds and factory refreshes alike.

Each valve features a chrome polished finish to reduce friction and carbon buildup, ensuring consistent exhaust flow and superior heat dissipation. Designed as a direct-fit replacement for the OE valves, these components maintain strict tolerances to ensure proper seat contact and reliable valvetrain geometry under high RPM conditions.

• Fits: Ford Mustang Gen 3 Coyote (5.0L)
• Part Type: Exhaust Valve
• Head Diameter: 32mm (STD)
• Finish: Chrome Polished
• Quantity: Set of 8
• Manufacturer Part Number: 2161-8

Fits Ford Mustang Gen 1 and Gen 2 Coyote engines (5.0L).

Built to withstand the extreme thermal loads found in high-performance Coyote builds, this set of 8 GSC Power-Division exhaust valves is engineered from a proprietary Super Alloy. This material choice provides superior heat resistance compared to standard stainless steel, making these valves an essential upgrade for forced induction, nitrous, or high-RPM naturally aspirated applications where exhaust gas temperatures (EGTs) are elevated.

These valves feature a 31.75mm standard (STD) head diameter, ensuring a direct replacement for factory units without requiring oversized seat machining. Each valve is precision-ground to strict tolerances to ensure a perfect seal and optimal gas flow within the cylinder head.

• Manufacturer Part Number: 2155-8
• Head Diameter: 31.75mm (Standard Size)
• Material: High-Temperature Super Alloy
• Compatibility: Ford 5.0L Coyote Gen 1/2 Engines
• Quantity: Set of 8 Exhaust Valves

Fits 2011-2017 Ford Mustang models equipped with the 5.0L Coyote Gen 1 and Gen 2 engines.

These GSC Power-Division intake valves are engineered specifically for the high-revving Ford Coyote platform. Each valve features a 37.27mm standard head diameter, making them a precise replacement for OE components. The chrome polished finish reduces friction within the guide and improves airflow across the valve head, providing the durability needed for high-performance street and track applications.

• Manufacturer Part Number: 2152-8
• Quantity: Set of 8 intake valves
• Head Diameter: 37.27mm (STD)
• Finish: Chrome Polished
• Compatibility: Ford 5.0L Coyote Gen 1/2 engines

Fits select Ford Mustang 5.0L Coyote Gen 1/2 models (5.0L).

Engineered for high-performance applications, these GSC Power-Division (P-D) exhaust valves are a direct-fit upgrade for standard (STD) head configurations. Featuring a chrome polished finish, these valves are designed to reduce friction and minimize carbon buildup on the valve face, ensuring consistent sealing and improved exhaust flow during high-RPM operation. These are ideal for rebuilds or performance builds where reliability in the Coyote Gen 1 and Gen 2 valvetrain is critical.

• Part Number: 2151-8
• Head Diameter: 31.75mm (Standard Size)
• Finish: Chrome Polished for reduced friction and carbon resistance
• Compatible Engines: Ford 5.0L Coyote Gen 1 and Gen 2
• Included: Set of 8 exhaust valves

Fits Nissan RB26DETT engines.

GSC Power-Division high-performance exhaust valves are engineered to withstand the extreme thermal loads found in turbocharged RB26DETT builds. This set of twelve valves features a 30.15mm head diameter and a standard 103.24mm overall length, but is specifically designed with a +1.5mm tip extension. This added tip height is critical for maintaining proper valvetrain geometry and lash adjustment when using specific aftermarket camshafts or valve spring combinations.

• Manufacturer Part Number: 2147-12
• Head Diameter: 30.15mm
• Overall Length: 103.24mm
• Tip Height: +1.5mm (Extended)
• Engine Application: Nissan RB26DETT
• Quantity: Set of 12 Exhaust Valves