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Vendor:GrimmSpeedGrimmSpeed 15-21 Subaru WRX Equal Length Exhaust Header
Regular price $979.00Sale price $979.00 Regular priceUnit price per -
Vendor:GrimmSpeedGrimmSpeed 08-14 Subaru WRX V2 Bypass Valve - Black
Regular price $279.00Sale price $279.00 Regular priceUnit price per -
Vendor:GrimmSpeedGrimmSpeed 04-21 Subaru STI V2 Bypass Valve - Red
Regular price $299.00Sale price $299.00 Regular priceUnit price per -
Vendor:GrimmSpeedGrimmSpeed 2022+ Subaru WRX 75A Durometer Street Engine Mount
Regular price $309.00Sale price $309.00 Regular priceUnit price per -
Vendor:GrimmSpeedGrimmSpeed 04-21 Subaru STI V2 Bypass Valve - Black
Regular price $299.00Sale price $299.00 Regular priceUnit price per -
Vendor:GrimmSpeedGrimmSpeed 22-25 Subaru WRX (FA24) Equal Length Header
Only 2 leftRegular price $1,029.00Sale price $1,029.00 Regular priceUnit price per -
Vendor:GrimmSpeedGrimmSpeed 02-21 Subaru EJ / 15-21 Subaru WRX FA20 75A Durometer Street Engine Mount
Regular price $289.00Sale price $289.00 Regular priceUnit price per -
Vendor:GrimmSpeedGrimmSpeed 89-22 Subaru All Models Bolt Oil Caps - Red/Black
Regular price $59.00Sale price $59.00 Regular priceUnit price per -
Vendor:GrimmSpeedGrimmSpeed 15-21 Subaru WRX Version 2 Aluminum Turbo Inlet
Regular price $214.00Sale price $214.00 Regular priceUnit price per -
Vendor:GrimmSpeedGrimmSpeed 15-21 Subaru WRX V2 Bypass Valve - Red
Regular price $299.00Sale price $299.00 Regular priceUnit price per -
Vendor:GrimmSpeedGrimmSpeed 15-21 Subaru WRX V2 Bypass Valve - Black
Regular price $299.00Sale price $299.00 Regular priceUnit price per -
Vendor:GrimmSpeedGrimmSpeed 89-22 Subaru All Models Bolt Oil Caps - Red
Regular price $59.00Sale price $59.00 Regular priceUnit price per -
Vendor:GrimmSpeedGrimmSpeed 2022+ Subaru WRX Radiator Shroud Kit - Titanium
Regular price $325.00Sale price $325.00 Regular priceUnit price per -
Vendor:GrimmSpeedGrimmSpeed 2013+ Subaru BRZ / 2022+ Subaru WRX Engine Bay Dress-Up Caps - Black
Regular price $63.00Sale price $63.00 Regular priceUnit price per -
Vendor:GrimmSpeedGrimmSpeed 2022+ Subaru WRX Pulley Cover - Black
Regular price $94.00Sale price $94.00 Regular priceUnit price per
Why Buy from FAST of West Chester?
This isn’t a warehouse — it’s a performance shop. At FAST of West Chester, every part we sell has been installed, tested, and pushed on real builds.
Led by Dave Brown, our team knows what works, what doesn’t, and what actually delivers results. No guesswork. No wasted money. Just proven performance.
Unlike large online retailers, our recommendations are based on hands-on experience with Subaru, JDM, and performance platforms — ensuring every part we offer delivers reliable performance, fitment, and results.