GSC Power Division

GSC Power Division FA20F Exhaust Valve +1mm 30mm — Fits 2015+ Subaru WRX

GSC Power Division FA20F Exhaust Valve +1mm 30mm — Fits 2015+ Subaru WRX
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GSC Power Division FA20F Exhaust Valve +1mm 30mm — Fits 2015+ Subaru WRX
GSC Power Division

GSC Power Division FA20F Exhaust Valve +1mm 30mm — Fits 2015+ Subaru WRX

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SKU: GSC2283-8
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About GSC Power Division GSC Power Division engineers high-quality automotive ...Read More

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Car Wheel Size Chart

Wheel Diameter (inches) Tire Width (mm) Aspect Ratio Rim Width (inches)
14185655.5
15195606.0
16205556.5
17215507.0
18225457.5
19235408.0
20245358.5

Note: Wheel and tire sizes vary by car make and model. Always consult your vehicle’s manufacturer for exact specifications.

How to Read Tire Size

Example: 225/45R17 means:

  • 225 = Tire width in mm
  • 45 = Aspect ratio (height as % of width)
  • R17 = Rim diameter in inches
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Product Details

Product Description
Part Numbers
Sizing & Fit

About GSC Power Division

GSC Power Division engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full GSC Power Division lineup with fast shipping and expert fitment support — order with confidence.

GSC Power Division +1mm Exhaust Valves

Unlock more power from your Subaru FA20F engine with GSC Power Division's +1mm oversized exhaust valves. Featuring a 30mm head diameter, these valves are designed to increase exhaust flow, making them a perfect addition to ported cylinder heads and high-performance engine builds for the 2015+ Subaru WRX.

Advanced Material Technology

  • 23-8N Alloy Construction: Offers exceptional heat resistance and durability for high-output engines.
  • Chrome Polished Finish: Reduces surface friction and helps prevent carbon buildup on the valve face.
  • +1mm Oversized Head: Increases flow capacity for improved power and efficiency.
  • Performance Ready: Engineered for enthusiasts looking to push their FA20F beyond stock limits.

The +1mm oversized design is a popular choice for those looking to maximize the volumetric efficiency of their Subaru engine. By increasing the valve area, you allow the engine to breathe better under high-boost conditions, reducing backpressure and improving overall performance. Whether you are building a track-focused machine or a high-horsepower street car, these valves provide the strength and flow required for success. Trust your engine build to the experts at GGCRACING.

Product Details

Product Description
Part Numbers
Sizing & Fit

About GSC Power Division

GSC Power Division engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full GSC Power Division lineup with fast shipping and expert fitment support — order with confidence.

GSC Power Division +1mm Exhaust Valves

Unlock more power from your Subaru FA20F engine with GSC Power Division's +1mm oversized exhaust valves. Featuring a 30mm head diameter, these valves are designed to increase exhaust flow, making them a perfect addition to ported cylinder heads and high-performance engine builds for the 2015+ Subaru WRX.

Advanced Material Technology

  • 23-8N Alloy Construction: Offers exceptional heat resistance and durability for high-output engines.
  • Chrome Polished Finish: Reduces surface friction and helps prevent carbon buildup on the valve face.
  • +1mm Oversized Head: Increases flow capacity for improved power and efficiency.
  • Performance Ready: Engineered for enthusiasts looking to push their FA20F beyond stock limits.

The +1mm oversized design is a popular choice for those looking to maximize the volumetric efficiency of their Subaru engine. By increasing the valve area, you allow the engine to breathe better under high-boost conditions, reducing backpressure and improving overall performance. Whether you are building a track-focused machine or a high-horsepower street car, these valves provide the strength and flow required for success. Trust your engine build to the experts at GGCRACING.

Product Details

Product Description

About GSC Power Division

GSC Power Division engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full GSC Power Division lineup with fast shipping and expert fitment support — order with confidence.

GSC Power Division +1mm Exhaust Valves

Unlock more power from your Subaru FA20F engine with GSC Power Division's +1mm oversized exhaust valves. Featuring a 30mm head diameter, these valves are designed to increase exhaust flow, making them a perfect addition to ported cylinder heads and high-performance engine builds for the 2015+ Subaru WRX.

Advanced Material Technology

  • 23-8N Alloy Construction: Offers exceptional heat resistance and durability for high-output engines.
  • Chrome Polished Finish: Reduces surface friction and helps prevent carbon buildup on the valve face.
  • +1mm Oversized Head: Increases flow capacity for improved power and efficiency.
  • Performance Ready: Engineered for enthusiasts looking to push their FA20F beyond stock limits.

The +1mm oversized design is a popular choice for those looking to maximize the volumetric efficiency of their Subaru engine. By increasing the valve area, you allow the engine to breathe better under high-boost conditions, reducing backpressure and improving overall performance. Whether you are building a track-focused machine or a high-horsepower street car, these valves provide the strength and flow required for success. Trust your engine build to the experts at GGCRACING.

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