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Up to 15% offVendor:GSC Power DivisionGSC P-D 12+ Subaru BRZ / Scion FR-S Single Spring Chromoly Seat and Titanium Retainer Kit
Only 2 leftRegular price $306.01Sale price $306.01 Regular priceUnit price per$360.01You Save $54.00! -
Up to 15% offVendor:GSC Power DivisionGSC P-D 3SGTE Spring and Titanium Retainer Kit for Shim Under Bucket
Only 1 leftRegular price $282.46Sale price $282.46 Regular priceUnit price per$332.31You Save $49.85! -
Up to 15% offVendor:GSC Power DivisionGSC P-D 3SGTE Spring and Titanium Retainer Kit for Shimless and Shimover Bucket
Regular price $282.46Sale price $282.46 Regular priceUnit price per$332.31You Save $49.85! -
Up to 15% offVendor:GSC Power DivisionGSC P-D Toyota 2JZGTE/2JZGE/VVTI Variants Valve Spring Kit (set of 24)
Only 7 leftRegular price $423.70Sale price $423.70 Regular priceUnit price per$498.47You Save $74.77! -
Up to 15% offVendor:GSC Power DivisionGSC P-D Subaru EJ Turbo DOHC Valve Spring & Ti Retainer Kit
Regular price $282.46Sale price $282.46 Regular priceUnit price per$332.31You Save $49.85! -
Up to 15% offVendor:GSC Power DivisionGSC P-D Toyota 2JZ Dual Valve Spring and Ti Retainer Kit
Only 1 leftRegular price $1,006.42Sale price $1,006.42 Regular priceUnit price per$1,184.02You Save $177.60! -
Up to 15% offVendor:GSC Power DivisionGSC P-D Subaru FA20 WRX/BRZ/FRS Dual Cylindrical Valve Spring Kit
Regular price $449.60Sale price $449.60 Regular priceUnit price per$528.94You Save $79.34! -
Up to 15% offVendor:GSC Power DivisionGSC P-D Ford Raptor/Platinum/Limited Ecoboost 3.5L H.O. Conical Valve Spring and Ti Retainer Kit
Only 4 leftRegular price $620.50Sale price $620.50 Regular priceUnit price per$730.00You Save $109.50! -
Up to 15% offVendor:GSC Power DivisionGSC P-D Mitsubishi 4G63T High Pressure Conical Valve Spring and Ti Retainer Kit
Only 4 leftRegular price $518.53Sale price $518.53 Regular priceUnit price per$610.03You Save $91.50! -
Up to 15% offVendor:GSC Power DivisionGSC P-D Mitsubishi 4G63T Extreme Pressure Conical Valve Spring and Ti Retainer Kit
Regular price $518.53Sale price $518.53 Regular priceUnit price per$610.03You Save $91.50! -
Up to 15% offVendor:GSC Power DivisionGSC P-D 2017+ Audi RS3 DAZA Beehive Valve Spring and Ti Retainer Kit (60PSI Max Boost)
Only 7 leftRegular price $552.50Sale price $552.50 Regular priceUnit price per$650.00You Save $97.50! -
Up to 15% offVendor:GSC Power DivisionGSC P-D Porsche 991 Turbo Conical Spring Set
Regular price $981.75Sale price $981.75 Regular priceUnit price per$1,155.00You Save $173.25! -
Up to 15% offVendor:GSC Power DivisionGSC P-D Toyota Supra/BMW Z4 B58 Beehive Valve Spring and Ti Retainer Kit
Only 20 leftRegular price $595.00Sale price $595.00 Regular priceUnit price per$700.00You Save $105.00! -
Up to 15% offVendor:GSC Power DivisionGSC P-D Toyota 2JZ-GTE Extreme Pressure Single Conical Valve Spring and Ti Retainer Kit
Only 10 leftRegular price $807.50Sale price $807.50 Regular priceUnit price per$950.00You Save $142.50! -
Up to 15% offVendor:GSC Power DivisionGSC P-D Nissan RB26DETT Shimless Conical Valve Spring & Ti Retainer Kit ( Max Boost PSI 50)
Only 4 leftRegular price $824.80Sale price $824.80 Regular priceUnit price per$970.35You Save $145.55!
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.