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Up to 15% offVendor:GSC Power DivisionGSC P-D Subaru EJ25 SOHC Intake/Exhaust Valve Guide Stopper Style - Set of 240
Regular price $1,281.73Sale price $1,281.73 Regular priceUnit price per$1,507.92You Save $226.19! -
Up to 15% offVendor:GSC Power DivisionGSC P-D 2015+ Subaru Impreza WRX Chrome Polished Intake Valve - 35mm (+1mm) - Set of 50
Regular price $1,052.91Sale price $1,052.91 Regular priceUnit price per$1,238.72You Save $185.81! -
Up to 15% offVendor:GSC Power DivisionGSC P-D 2015+ Subaru FA20F WRX Chrome Polished Exhaust Valve - 30mm Head +1mm - Set of 50
Regular price $1,065.29Sale price $1,065.29 Regular priceUnit price per$1,253.28You Save $187.99! -
Up to 15% offVendor:GSC Power DivisionGSC P-D Subaru/Scion FA20 Chrome Polish Intake Valve - 36mm Head (+1mm) - Set of 50
Regular price $1,035.78Sale price $1,035.78 Regular priceUnit price per$1,218.56You Save $182.78! -
Up to 15% offVendor:GSC Power DivisionGSC P-D Subaru/Scion FA20 Chrome Polish Exhaust Valve - 30mm Head (+1mm) - Set of 50
Regular price $1,065.29Sale price $1,065.29 Regular priceUnit price per$1,253.28You Save $187.99! -
Up to 15% offVendor:GSC Power DivisionGSC P-D Subaru EJ205/EJ207/EJ257 Chrome Polished Exhaust Valve - 33mm Head (+1mm) - Set of 50
Regular price $1,021.50Sale price $1,021.50 Regular priceUnit price per$1,201.76You Save $180.26! -
Up to 15% offVendor:GSC Power DivisionGSC P-D Nissan VQ35DE Viton 6mm Valve Stem Seal - Set of 500
Regular price $334.38Sale price $334.38 Regular priceUnit price per$393.39You Save $59.01! -
Up to 15% offVendor:GSC Power DivisionGSC P-D Honda D16/B18/H23 Viton 6.6mm Valve Stem Seal - Set of 500
Regular price $335.33Sale price $335.33 Regular priceUnit price per$394.50You Save $59.17! -
Up to 15% offVendor:GSC Power DivisionGSC P-D Honda B/K/H Series Viton 5.5mm Valve Stem Seal - Set of 500
Regular price $323.31Sale price $323.31 Regular priceUnit price per$380.36You Save $57.05! -
Up to 15% offVendor:GSC Power DivisionGSC P-D Toyota MR-2 3SGTE Viton 6mm Valve Stem Seal - Set of 500
Regular price $304.84Sale price $304.84 Regular priceUnit price per$358.63You Save $53.79! -
Up to 15% offVendor:GSC Power DivisionGSC P-D Toyota 2JZ Viton 6mm Valve Stem Seal - Set of 500
Regular price $304.84Sale price $304.84 Regular priceUnit price per$358.63You Save $53.79! -
Up to 15% offVendor:GSC Power DivisionGSC P-D Subaru FA20 Viton 6mm Valve Stem Seal - Set of 500
Regular price $369.30Sale price $369.30 Regular priceUnit price per$434.47You Save $65.17! -
Up to 15% offVendor:GSC Power DivisionGSC P-D Mitsubishi Evo X 4B11T Valve Stem Seal - Set of 200
Regular price $523.99Sale price $523.99 Regular priceUnit price per$616.46You Save $92.47! -
Up to 15% offVendor:GSC Power DivisionGSC P-D 4G63T Evo 1-9 / 90-98 DSM Viton 6.6mm Valve Stem Seal - Set of 500
Regular price $359.97Sale price $359.97 Regular priceUnit price per$423.49You Save $63.52! -
Up to 15% offVendor:GSC Power DivisionGSC P-D Hyundai Genesis Coupe 2.0L Turbo (G4KF) S3 Cams 280/280 Billet (Upgraded Springs Required)
Only 11 leftRegular price $698.28Sale price $698.28 Regular priceUnit price per$821.50You Save $123.22!
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.