Sold Out Quick view Ferrea Ferrea Acura K20 Endurance Dual Spring Kit - KT4003 Compare $1,140.00 $1,026.99 Ferrea Acura K20 Endurance Dual Spring Kit Currently Out of stock. On order! Currently Out of stock. On order!
Quick view Supertech Supertech Audi V6 2.7L 30V Dual Valve Spring Kit - SPRK-AUDI2.7T-DR Compare $1,047.85 $838.99 Supertech Audi V6 2.7L 30V Dual Valve Spring Kit Add to Cart Add to Cart
Quick view GSC Power Division GSC P-D Nissan VQ35 Extreme Conical Valve Spring Titanium Retainer and Spring Seat Kit - 5016 Compare $995.00 $845.99 GSC P-D Nissan VQ35 Extreme Conical Valve Spring Titanium Retainer and Spring Seat Kit Add to Cart Add to Cart
Quick view GSC Power Division GSC P-D Ford Mustang 5.0L Coyote Gen 3 High Pressure Conical Valve Spring & Ti Retainer Kit - 5011 Compare $959.00 $815.99 GSC P-D Ford Mustang 5.0L Coyote Gen 3 High Pressure Conical Valve Spring & Ti Retainer Kit Add to Cart Add to Cart
Quick view Supertech Supertech BMW N54 Conical Spring Kit - Rate 7.25lbs/mm - SPRK-FE20N54-BE-2 Compare $1,082.33 $865.99 Supertech BMW N54 Conical Spring Kit - Rate 7.25lbs/mm Add to Cart Add to Cart
Quick view Supertech Supertech Nissan RB26DET 24V Dual Valve Spring Kit - SPRK-TS1015-RB26 Compare $1,050.31 $840.99 Supertech Nissan RB26DET 24V Dual Valve Spring Kit Add to Cart Add to Cart
Quick view Supertech Supertech VW VR6 24V R32 Dual Valve Spring Kit 76lbs - SPRK-TC25D-VR6-36 Compare $1,032.01 $825.99 Supertech VW VR6 24V R32 Dual Valve Spring Kit 76lbs Add to Cart Add to Cart
Quick view Supertech Supertech Subaru EZ30 (w/Variable Intake Lift) Dual Valve Spring Kit - SPRK-SUEZ30-W Compare $1,050.31 $840.99 Supertech Subaru EZ30 (w/Variable Intake Lift) Dual Valve Spring Kit Add to Cart Add to Cart
Quick view Supertech Supertech BMW S42/M42/M50/S50/M52/M54 Dual Valve Spring Kit - SPRK-H1005D-BM Compare $1,050.31 $840.99 Supertech BMW S42/M42/M50/S50/M52/M54 Dual Valve Spring Kit Add to Cart Add to Cart
Quick view Supertech Supertech Hyundai 3.8L 24V Dual Valve Spring Kit - SPRK-H1002D-HY Compare $1,128.84 $903.99 Supertech Hyundai 3.8L 24V Dual Valve Spring Kit Add to Cart Add to Cart
Quick view Supertech Supertech BMW S42/M42/M50/S50/M52/M54 Dual Valve Spring Kit - SPRK-H1000D-BM Compare $1,050.31 $840.99 Supertech BMW S42/M42/M50/S50/M52/M54 Dual Valve Spring Kit Add to Cart Add to Cart
Quick view Supertech Supertech BMW N54 24V 3.0L BMW N54 Conical Spring Kit (Use Factory Valve Stem Seal) - SPRK-FE20N54-BE Compare $1,082.33 $865.99 Supertech BMW N54 24V 3.0L BMW N54 Conical Spring Kit (Use Factory Valve Stem Seal) Add to Cart Add to Cart