Fits select 1992-2001 Acura Integra and Honda Civic models equipped with B-Series VTEC engines (B16A, B17A, and B18C).

GSC Power-Division manganese bronze valve guides are engineered for high-performance cylinder head builds where heat dissipation and wear resistance are critical. Unlike standard cast iron guides, these manganese bronze components provide superior thermal conductivity and natural lubricity, reducing the risk of valve stem galling or seizure during high-RPM operation and extreme exhaust gas temperatures.

Precision CNC-machined to exact tolerances, these exhaust guides ensure consistent valve stem-to-guide clearance for improved oil control and valve seat longevity. This set is specifically designed for the exhaust side of the cylinder head to withstand the rigorous demands of forced induction or high-compression naturally aspirated B-Series builds.

• Manufacturer Part Number: 3051-8
• Material: Manganese Bronze
• Quantity: Set of 8 (Exhaust Side)
• Engine Compatibility: B16A, B17A, B18C VTEC

Vehicle Fitment:

• 1992-2001 Acura Integra GS-R
• 1997-2001 Acura Integra Type R
• 1999-2000 Honda Civic Si
• 1994-1997 Honda Civic del Sol VTEC

Fits Honda B16A, B17A, and B18C VTEC engines.

Maintain precise valve stem alignment and cooling efficiency with this set of GSC Power-Division exhaust valve guides. These components are essential for high-performance engine builds where factory tolerances have exceeded service limits or during a complete cylinder head refresh. Precision-machined to accommodate 6mm valve stems, these guides ensure the stability required for high-RPM VTEC operation.

Replacing worn guides is critical to preventing oil consumption, irregular valve seat wear, and potential valve failure. These guides provide a reliable interface between the valve stem and the cylinder head, offering the durability needed for both street and track applications.

• Application: Honda B16A, B17A, B18C VTEC
• Position: Exhaust
• Valve Stem Diameter: 6mm
• Quantity: Set of 8
• Manufacturer Part Number: 3049-8

Fits 2009-2015 Nissan GT-R (VR38DETT) including Base, Black Edition, Nismo, Premium, and Track Edition models.

GSC Power-Division manganese bronze intake valve guides are precision-engineered for high-performance VR38DETT engine builds. Designed to replace worn factory components, these guides offer significantly better heat dissipation compared to standard cast iron, essential for high-boost or high-RPM applications. The manganese bronze material provides exceptional lubricity, reducing friction against the valve stem to prevent galling and seizure under extreme thermal loads.

• Material: High-strength Manganese Bronze
• Application: Intake valves
• Engine: VR38DETT
• Compatibility: Replaces OE guides
• Manufacturer Part Number: 3046-12
• Quantity: Set of 12

Fits 2009-2015 Nissan GT-R models (VR38DETT) including Base, Black Edition, Nismo, Premium, and Track Edition.

GSC Power-Division manganese bronze valve guides are precision-engineered for high-performance VR38DETT cylinder head builds. These exhaust guides offer superior thermal conductivity compared to standard OEM units, efficiently drawing heat away from the valve stems. The manganese bronze material provides excellent natural lubricity and high wear resistance, making them an essential upgrade for high-boost or high-RPM applications where valve train reliability is critical.

• Material: High-quality Manganese Bronze
• Application: Exhaust side only
• Quantity: Complete set of 12 guides
• Engine Compatibility: Nissan 3.8L Twin-Turbo VR38DETT
• Manufacturer Part Number: 3045-12

Fits 1989-1998 Nissan 240SX models equipped with the SR20DET engine.

GSC Power Division P-D Manganese Bronze Intake Valve Guides are engineered for high-performance cylinder heads where standard components often fail. These intake guides are precision-machined from a high-strength manganese bronze alloy, offering significantly better thermal conductivity and natural lubricity than factory cast iron guides. This material choice is essential for maintaining valve stem stability and heat dissipation in high-RPM and turbocharged applications like the SR20DET.

• Material: High-strength Manganese Bronze alloy
• Position: Intake side only
• Application: Nissan SR20DET engine platforms
• Kit Contents: Set of 8 intake valve guides
• Manufacturer Part Number: 3042-8

Engineered for high-performance Nissan RB26DETT builds, these GSC Power-Division manganese bronze intake valve guides provide superior thermal conductivity and wear resistance compared to standard cast iron components. These guides are designed to maintain tighter tolerances under extreme heat, making them an essential upgrade for turbocharged applications where valve stem stability and cooling are critical to engine longevity.

The manganese bronze alloy is chosen for its natural lubricity and its ability to quickly dissipate heat from the valve stem to the cylinder head. This reduces the risk of valve seizing and extends the service life of both the valves and the valve seats in high-RPM or high-boost environments. Each guide is precision-machined to ensure a perfect fit in the RB26 head.

• Fits Nissan RB26DETT engines
• Manufactured from high-strength manganese bronze alloy
• Superior heat dissipation and wear characteristics
• Ideal for high-boost and high-RPM race applications
• Manufacturer Part Number: 3042-12
• Quantity: Set of 12 intake valve guides

Designed for high-performance cylinder head builds, these GSC Power-Division manganese bronze exhaust valve guides are engineered for the Nissan RB26DEETT engine. Replacing worn factory guides with manganese bronze provides significantly better thermal conductivity and superior lubricity compared to standard cast iron components. This material choice is critical for exhaust valves that endure extreme temperatures, as it helps pull heat away from the valve stem and prevents galling or seizing during high-RPM operation.

• Precision machined from high-quality manganese bronze for enhanced wear resistance
• Improved heat dissipation compared to OE valve guides
• Excellent lubricity properties to reduce friction on exhaust valve stems
• Designed specifically for the demands of high-boost and high-temperature applications
• Complete set of 12 exhaust valve guides
• Manufacturer Part Number: 3041-12

Fits 1992-2005 Lexus GS300, IS300, SC300, and Toyota Supra (2JZ). These GSC Power-Division intake valve guides are engineered as a high-performance replacement for factory components in both naturally aspirated and turbocharged 2JZ cylinder heads.

Manufactured from a proprietary manganese bronze alloy, these guides offer superior thermal conductivity compared to original cast iron or steel guides. This allows for more efficient heat transfer from the valve stem to the cylinder head, extending valve life and improving reliability in high-RPM or high-boost environments. The material also provides excellent natural lubricity, reducing friction and preventing galling even in tight-tolerance builds.

• Engine Application: Toyota 2JZ-GE / 2JZ-GTE
• Material: Manganese Bronze
• Component Type: Intake Valve Guide
• Quantity: Set of 12
• Manufacturer Part Number: 3032-12

Fits 1992-2005 Lexus GS300, IS300, SC300, and Toyota Supra (2JZ).

GSC Power Division manganese bronze valve guides are engineered for high-performance cylinder heads, offering superior heat dissipation and natural lubricity compared to standard OE components. These exhaust guides are precision-machined to ensure consistent tolerances and long-term durability in the demanding environment of the 2JZ engine. The manganese bronze material is specifically chosen for its excellent thermal conductivity and its ability to withstand the increased heat and friction of high-RPM or boosted applications.

• Material: Manganese Bronze for enhanced heat transfer and wear resistance
• Engine Compatibility: Toyota/Lexus 2JZ-GE and 2JZ-GTE
• Component Type: Exhaust Valve Guides
• Quantity: Set of 12
• Manufacturer Part Number: 3031-12

Designed for high-performance builds, the GSC Power-Division Manganese Bronze Exhaust Valve Guide is a precision-engineered replacement for the factory guides in Toyota 2JZ engines. Fits Toyota 2JZ-GE and 2JZ-GTE engines.

Manganese bronze is the material of choice for professional engine builders due to its superior thermal conductivity and natural lubricity. These attributes are essential for forced induction 2JZ applications, as they help dissipate heat away from the exhaust valve stem while reducing friction and wear under extreme operating temperatures. Each guide is machined to exacting tolerances to ensure consistent valve stem-to-guide clearance and improved valve seat longevity.

• Material: High-quality Manganese Bronze
• Position: Exhaust
• Compatibility: Toyota 2JZ-GE / 2JZ-GTE
• Improved heat dissipation over OEM cast iron guides
• Sold individually
• Manufacturer Part Number: 3031

Fits select 1999-2015 Subaru Impreza, WRX, and WRX STI models, as well as the 2005 Saab 9-2X Aero (EJ205/EJ207/EJ264).

GSC Power-Division traditional manganese bronze intake valve guides are designed for high-performance engine builds where heat and friction management are critical. These guides offer superior thermal conductivity and wear resistance compared to factory components, making them an essential upgrade for high-revving or boosted Subaru EJ series engines. The manganese bronze material provides a low-friction surface that extends valve stem life and ensures precise valve alignment under extreme operating conditions.

• Engine Compatibility: EJ205, EJ207, EJ264
• Material: Manganese Bronze
• Valve Type: Intake
• Style: Traditional
• Quantity: Set of 8
• Manufacturer Part Number: 3028-8

Fits select 1999-2015 Subaru Impreza, WRX STI, and 2005 Saab 9-2X (EJ205 / EJ207 / EJ262 engines).

These GSC Power-Division traditional manganese bronze exhaust valve guides are designed for high-performance valvetrain builds. Replacing worn factory guides is essential for maintaining valve-to-seat concentricity and preventing premature valve or seal failure. By utilizing a manganese bronze alloy, these guides offer superior heat dissipation and improved lubrication properties compared to standard cast iron components, making them ideal for turbocharged EJ series engines.

Each guide is precision-machined to ensure exact tolerances during installation, providing a stable path for the exhaust valve stem under high-load and high-temperature conditions. This complete set of eight provides everything needed for a full cylinder head refresh on your Subaru or Saab EJ powerplant.

• Material: Manganese Bronze
• Series: Traditional
• Application: Exhaust side
• Quantity: Set of 8
• Manufacturer Part Number: 3027-8

Fits select 1999-2015 Subaru Impreza, WRX, and STI models, and 2005 Saab 9-2X Aero (EJ205/EJ207/EJ260).

GSC Power-Division manganese bronze valve guides are engineered for high-performance engine builds where heat management and durability are critical. These stopper-style intake guides provide a positive stop during the press-in process, ensuring precise and consistent installation depth every time. Manufactured from a proprietary manganese bronze alloy, they offer significantly better thermal conductivity and a lower coefficient of friction than factory cast iron guides. This reduces wear on valve stems and improves heat transfer from the valve to the cylinder head, which is essential for high-boost or high-RPM applications.

• Material: Manganese Bronze for superior heat dissipation and wear resistance
• Style: Stopper Style for precise installation positioning
• Engine Compatibility: EJ205, EJ207, and EJ260 Series
• Quantity: Set of 8 Intake Valve Guides
• Manufacturer Part Number: 3026-8

Fits Subaru EJ205, EJ207, and EJ259 engines.

GSC Power-Division manganese bronze valve guides are engineered to withstand the extreme thermal loads and high-stress environments of performance-built Subaru boxer engines. These "stopper style" guides feature a precision-machined shoulder that acts as a positive mechanical stop against the cylinder head. This design effectively prevents the guide from "walking" or dropping into the intake port, a critical safeguard for high-RPM and high-boost applications where heat and vibration can cause standard guides to migrate.

• CNC machined from high-quality manganese bronze for superior heat dissipation and reduced friction
• Stopper style flange provides a mechanical seat to eliminate guide movement/dropping
• Ideal for high-performance builds requiring tighter tolerances and improved thermal conductivity
• Direct replacement for the intake side valve guide
• Sold individually (Single)
• Manufacturer Part Number: 3026

Fits Subaru EJ205, EJ207, EJ257, and EJ257B engines.

This GSC Power-Division exhaust valve guide is engineered for high-performance Subaru EJ-series cylinder heads. Featuring a "stopper style" design, these guides incorporate a machined shoulder to prevent the guide from dropping or migrating under extreme thermal stress—a critical safeguard for high-boost turbocharged applications. This specific component features a +.001-inch oversized outside diameter (OD), providing the necessary tolerance for cylinder heads with slightly worn or enlarged guide bores that require a precise, secure press fit.

• Part Type: Exhaust Valve Guide (Stopper Style)
• Oversize: +.001in OD
• Engine Compatibility: Subaru EJ205, EJ207, EJ257, EJ257B
• Quantity: Single Guide
• Manufacturer Part Number: 3025.001-1

Fits select 1999-2015 Subaru Impreza and WRX STI, and 2005 Saab 9-2X Aero (EJ205 / EJ207 / EJ258 engines).

GSC Power-Division manganese bronze valve guides are engineered to withstand the extreme thermal demands of high-performance turbocharged Subaru EJ-series engines. These exhaust guides feature a stopper-style design to ensure precise seating and consistent installation depth during cylinder head assembly. By using a high-grade manganese bronze alloy, these guides offer superior heat dissipation and natural lubricity, significantly reducing friction and wear compared to standard factory cast iron components.

• Material: High-strength manganese bronze
• Style: Stopper-style for precise installation
• Application: Exhaust side
• Engine Compatibility: EJ205, EJ207, and EJ258
• Manufacturer Part Number: 3025-8
• Quantity: Set of 8 guides

Whether rebuilding a daily driver or prepping a track-focused STI, these guides provide the durability needed to maintain tight tolerances under high boost and high RPM conditions.

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

These Ferrea intake valve guides are engineered specifically for the Nissan GT-R VR38DETT engine, providing the precision and durability required for high-performance and racing applications. Valve guides are critical for maintaining exact valve stem alignment and facilitating efficient heat transfer from the valves to the cylinder head. Manufactured to exacting tolerances, these standard-size guides minimize friction and resist wear under the high-heat conditions common in forced induction VR38 builds.

• Engine Compatibility: Nissan VR38DETT
• Component Type: Intake Valve Guide
• Size: Standard (Std)
• Quantity: Set of 12
• Manufacturer Part Number: VG1085
• Installation Note: Must be used with Ferrea valve seal part number VS1014

Fits Nissan GT-R (VR38DETT).

Maintain precise valve stem alignment and critical thermal transfer with this set of 12 Ferrea Standard Exhaust Valve Guides (VG1083). Engineered for high-performance applications, these guides replace worn factory components to restore the tight tolerances necessary for stable valve motion and consistent sealing under the extreme pressures of the VR38DETT engine.

These standard-sized guides are specifically machined for the exhaust side of the cylinder head. For a proper installation and reliable performance, Ferrea requires these guides to be used with their VS1012 valve seals.

• Manufacturer Part Number: VG1083
• Position: Exhaust
• Sizing: Standard
• Engine Compatibility: Nissan 3.8L VR38DETT
• Quantity: Set of 12
• Required Hardware: Must be used with Ferrea VS1012 valve seals

Ensure precise valvetrain alignment and long-term durability in your Subaru EJ20 engine with Ferrea VG1073 intake valve guides. These standard-sized guides are engineered to replace worn factory components, providing the tight tolerances necessary for stable valve motion during high-RPM operation and high-performance rebuilds.

Precision-machined to exacting standards, these guides optimize heat transfer from the valve stem to the cylinder head, helping to prevent stem seizing and premature wear. Designed specifically for intake side applications, they provide a stable foundation for the valves to maintain a consistent seat seal for optimal compression.

• Engine Compatibility: Subaru EJ20
• Manufacturer Part Number: VG1073
• Type: Intake Valve Guide
• Size: Standard (Std)
• Quantity: Set of 8
• Installation Requirement: Must be used with Ferrea valve seals (Part No. VS1016)

Fits Subaru EJ20 engines.

This set of eight Ferrea standard exhaust valve guides (VG1071) is engineered to replace worn factory guides with high-precision components that maintain strict tolerances. Designed specifically for the exhaust side of the Subaru EJ20 cylinder head, these guides ensure proper valve stem alignment and efficient heat transfer from the valve to the head, which is critical for maintaining performance and avoiding valve-train failure.

• Standard (Std) sizing for direct-fit exhaust valve applications
• Precision-machined for consistent oil retention and reduced friction
• Specifically recommended for use with Ferrea VS1015 valve seals
• Engineered to withstand the high thermal loads of performance exhaust ports
• Full set of 8 guides included
• Manufacturer Part Number: VG1071

Ensure precise valve stem alignment and superior heat dissipation in your cylinder head with this set of 8 Ferrea standard exhaust valve guides. Engineered specifically for the Acura and Honda K20 series (2.0L) engines, these guides are manufactured to exacting tolerances to prevent valve play and maintain a consistent seal under high-stress operating conditions.

• Engine Fitment: Acura/Honda K20 (2.0L) series.
• Guide Type: Standard size exhaust valve guide.
• Quantity: Full set of 8 guides for one cylinder head.
• Hardware Note: Designed for use with Ferrea VS1002 valve seals.
• Manufacturer Part Number: VG1064