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Vendor:AEM InductionAEM 19-21 Subaru WRX STI 2.5L H4 Cold Air Intake System
Only 12 leftRegular price $249.99Sale price $249.99 Regular priceUnit price per -
Vendor:AEM InductionAEM 2018 Subaru WRX STI 2.5L H4 F/I Cold Air Intake System - Wrinkle Red
Only 6 leftRegular price $349.99Sale price $349.99 Regular priceUnit price per -
Up to 10% offVendor:XCLUTCHXClutch 15-21 Subaru WRX STi Base 2.5L Stage 2 Cushioned Ceramic Clutch Kit
Only 16 leftRegular price $745.19Sale price $745.19 Regular priceUnit price per$827.99You Save $82.80! -
Up to 10% offVendor:XCLUTCHXClutch 15-21 Subaru WRX STi Base 2.5L Stage 2 Sprung Ceramic Clutch Kit
Only 17 leftRegular price $706.54Sale price $706.54 Regular priceUnit price per$785.05You Save $78.51! -
Up to 10% offVendor:XCLUTCHXClutch 15-21 Subaru WRX STi Base 2.5L Stage 1 Extra HD Sprung Organic Clutch Kit
Regular price $712.07Sale price $712.07 Regular priceUnit price per$791.19You Save $79.12! -
Up to 10% offVendor:XCLUTCHXClutch 15-21 Subaru WRX STi Base 2.5L Stage 1 Sprung Organic Clutch Kit
Regular price $656.87Sale price $656.87 Regular priceUnit price per$729.86You Save $72.99! -
Up to 10% offVendor:XCLUTCHXClutch 15-21 Subaru WRX STi Base 2.5L 9in Twin Solid Organic Clutch Kit
Regular price $1,530.11Sale price $1,530.11 Regular priceUnit price per$1,700.12You Save $170.01! -
Up to 10% offVendor:XCLUTCHXClutch 15-21 Subaru WRX STi Base 2.5L 9in Twin Sprung Ceramic Clutch Kit
Only 4 leftRegular price $1,915.40Sale price $1,915.40 Regular priceUnit price per$2,128.22You Save $212.82! -
Up to 10% offVendor:XCLUTCHXClutch 15-21 Subaru WRX STi Base 2.5L 10.5in Twin Sprung Organic Clutch Kit
Regular price $1,683.57Sale price $1,683.57 Regular priceUnit price per$1,870.63You Save $187.06! -
Up to 10% offVendor:XCLUTCHXClutch 15-21 Subaru WRX STi Base 2.5L 8in Twin Sprung Ceramic Clutch Kit
Regular price $2,386.99Sale price $2,386.99 Regular priceUnit price per$2,652.21You Save $265.22! -
Up to 10% offVendor:XCLUTCHXClutch 13-21 Subaru WRX STi Type RA 2.5L Lightweight Chromoly Flywheel
Regular price $467.32Sale price $467.32 Regular priceUnit price per$519.24You Save $51.92! -
Up to 10% offVendor:XCLUTCHXClutch 04-22 Subaru WRX STi Type RA 2.5L Chromoly Flywheel
Only 17 leftRegular price $431.17Sale price $431.17 Regular priceUnit price per$479.08You Save $47.91! -
Up to 10% offVendor:XCLUTCHXClutch 04-23 Subaru Impreza WRX STi 2.0L Standard Replacement Organic ClutchPro Clutch Kit
Only 15 leftRegular price $411.85Sale price $411.85 Regular priceUnit price per$457.61You Save $45.76! -
Vendor:WhitelineWhiteline 2015+ Subaru STI Performance Lowering Springs
Only 8 leftRegular price $339.88Sale price $339.88 Regular priceUnit price per -
Vendor:WhitelineWhiteline 11-21 Subaru Impreza WRX STI Front Essential Vehicle Bushing Kit
Regular price $755.52Sale price $755.52 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.