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Up to 5% offVendor:Skunk2 RacingSkunk2 Toyota Supra MK5 / BMW B58/S58 High Lift Valve Spring & Titanium Retainer Set
Regular price $949.95Sale price $949.95 Regular priceUnit price per$999.95You Save $50.00! -
Up to 5% offVendor:Skunk2 RacingSkunk2 Honda K20C1/K20C4 Ultra Valve Springs and Spring Base Kit
Regular price $332.45Sale price $332.45 Regular priceUnit price per$349.95You Save $17.50! -
Up to 15% offVendor:GSC Power DivisionGSC P-D Subaru / Scion FA20 Chromoly CNC Spring Seat w/5756 Spring Kit - Set of 16
Regular price $48.96Sale price $48.96 Regular priceUnit price per$57.60You Save $8.64! -
Up to 15% offVendor:GSC Power DivisionGSC P-D Subaru EZ36 Valve Spring Seat and Titanium Retainer Kit
Only 1 leftRegular price $468.89Sale price $468.89 Regular priceUnit price per$551.63You Save $82.74! -
Up to 15% offVendor:GSC Power DivisionGSC P-D Porsche GT3/GT3 (991) Single Conical Valve Spring Ti Retainer Steel Spring Seat Kit
Only 1 leftRegular 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 Nissan TB48 Ti Retainer Steel Spring Seat HP Conical Valve Spring Kit
Only 5 leftRegular price $810.90Sale price $810.90 Regular priceUnit price per$954.00You Save $143.10! -
Up to 15% offVendor:GSC Power DivisionGSC P-D Nissan TB48 Ti Retainer Steel Spring Seat Conical Valve Spring Kit
Regular price $810.90Sale price $810.90 Regular priceUnit price per$954.00You Save $143.10! -
Up to 15% offVendor:GSC Power DivisionGSC P-D Subaru EZ36 Single Conical Valve Spring, Titanium Retainer Kit and Spring Seat Kit
Only 4 leftRegular price $741.47Sale price $741.47 Regular priceUnit price per$872.32You Save $130.85! -
Up to 15% offVendor:GSC Power DivisionGSC P-D VQ35DE Single Spring w/ Titanium Retainer Valvetrain Kit
Only 6 leftRegular price $597.57Sale price $597.57 Regular priceUnit price per$703.02You Save $105.45! -
Up to 15% offVendor:GSC Power DivisionGSC P-D Can-Am Maverick Turbo Conical Valve Spring and Ti Retainer Kit
Only 6 leftRegular price $364.65Sale price $364.65 Regular priceUnit price per$429.00You Save $64.35! -
Up to 15% offVendor:GSC Power DivisionGSC P-D Nissan RB26DETT Extreme Shimless Conical Valve Spring & Ti Retainer Kit (Max Boost PSI 90)
Regular price $994.80Sale price $994.80 Regular priceUnit price per$1,170.35You Save $175.55! -
Up to 15% offVendor:GSC Power DivisionGSC P-D Nissan VQ35 Extreme Conical Valve Spring Titanium Retainer and Spring Seat Kit
Only 2 leftRegular price $845.75Sale price $845.75 Regular priceUnit price per$995.00You Save $149.25! -
Up to 15% offVendor:GSC Power DivisionGSC P-D Nissan VQ35 High Pressure Conical Valve Spring Titanium Retainer and Spring Seat Kit
Regular price $778.60Sale price $778.60 Regular priceUnit price per$916.00You Save $137.40! -
Up to 15% offVendor:GSC Power DivisionGSC P-D Nissan VQ35 Conical Valve Spring and Titanium Retainer Kit
Regular price $778.60Sale price $778.60 Regular priceUnit price per$916.00You Save $137.40! -
Up to 15% offVendor:GSC Power DivisionGSC P-D 4G63T .035in over OEM Chromoly CNC Spring Seat (SINGLE)
Regular price $3.18Sale price $3.18 Regular priceUnit price per$3.74You Save $0.56!
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.