Supertech BMW S63 V8 Conical Spring Kit - Rate 83lbs (Ex) 80lbs (In) - SPRK-BMS63B MSRP: $1,522.16 Was: Now: $1,059.66 Add to Cart
GSC P-D Nissan RB26DETT Extreme Shimless Conical Valve Spring & Ti Retainer Kit (Max Boost PSI 90) - 5027 MSRP: $1,170.35 Was: Now: $959.78 Add to Cart
Manley .950in Valve Lift 1.522in OD NexTek Series Lightweight Dual Drag Race Valve Springs Set of 16 - 221460-16 MSRP: $1,078.41 Was: Now: $982.65 Add to Cart
Ferrea Chevrolet Corvette C8 6.2L LT2 Single Spring Kit - KT4053 MSRP: $1,148.32 Was: Now: $941.61 Add to Cart
Supertech Nissan VK56 Dual Valve Spring Kit - SPRK-TS1012-N35-32 MSRP: $1,398.72 Was: Now: $973.95 Add to Cart
Supertech Toyota 3UR-FE 32V Dual Valve Spring Kit (Seat Pressure 62 at 37.80) - SPRK-EC3027D-3UR MSRP: $1,575.07 Was: Now: $1,096.74 Add to Cart
Supertech Toyota 3UR-FE 32V Dual Valve Spring Kit - SPRK-EC3025D-3UR MSRP: $1,575.07 Was: Now: $1,096.74 Add to Cart
Supertech Audi V8 Beehive Valve Spring Kit - SPRK-A2416N-BE2-V8 MSRP: $1,380.61 Was: Now: $961.33 Add to Cart
Supertech Nissan VQ35DE 24V/VK56 32V Dual Valve Spring Kit - SPRK-TS1015-N352-32 MSRP: $1,400.42 Was: Now: $975.13 Add to Cart
Supertech Audi V8 4.2L 40V Dual Valve Spring Kit - SPRK-AUDI4.2T MSRP: $1,376.69 Was: Now: $958.61 Add to Cart
Manley Alcohol/Fuel Classes/ProMod NexTek Series High Performance Valve Springs - 221461-16 MSRP: $1,078.41 Was: Now: $982.65 Add to Cart
Manley Pro Stock / Fuel / Alcohol NexTek Series Drag Race Valve Springs - 221450-16 MSRP: $1,057.71 Was: Now: $963.79 Add to Cart
GSC P-D Toyota 2JZ Dual Valve Spring and Ti Retainer Kit - 5266 MSRP: $1,184.02 Was: Now: $970.99 Add to Cart
GSC P-D Porsche GT3/GT3 (991) Single Conical Valve Spring Ti Retainer Steel Spring Seat Kit - 5092 MSRP: $1,155.00 Was: Now: $947.19 Add to Cart
GSC P-D Nissan GTR VR38DETT Single Conical Valve Spring & Titanium Retainer Kit (Race Only) - 5089 MSRP: $1,191.47 Was: Now: $977.10
Ferrea Ford Coyote 5.0L Dual Special Alloy Valve Spring - Set of 32 - S10146 MSRP: $1,036.80 Was: Now: $944.73 Add to Cart
Ferrea Toyota 2JZGE/2JZGTE 380lbs Rate Inch Dual Valve Spring - Set of 24 - S10109 MSRP: $1,128.72 Was: Now: $1,028.38 Add to Cart
Ferrea 1.600in to 1.650in 1.160/1.610 OD 0.835/1.160 ID Dual Valve Spring - Set of 16 - S10076 MSRP: $1,057.28 Was: Now: $963.32 Add to Cart
Supertech BMW S63 V8 Conical Spring Kit - Rate 83lbs (Ex) 80lbs (In) - SPRK-BMS63B Supertech BMW S63 V8 Conical Spring Kit - Rate 83lbs (Ex) 80lbs (In) MSRP: $1,522.16 Was: Now: $1,059.66 Add to Cart
GSC P-D Nissan RB26DETT Extreme Shimless Conical Valve Spring & Ti Retainer Kit (Max Boost PSI 90) - 5027 GSC P-D Nissan RB26DETT Extreme Shimless Conical Valve Spring & Ti Retainer Kit (Max Boost PSI 90) MSRP: $1,170.35 Was: Now: $959.78 Add to Cart
Manley .950in Valve Lift 1.522in OD NexTek Series Lightweight Dual Drag Race Valve Springs Set of 16 - 221460-16 Manley .950in Valve Lift 1.522in OD NexTek Series Lightweight Dual Drag Race Valve Springs Set of 16 MSRP: $1,078.41 Was: Now: $982.65 Add to Cart
Ferrea Chevrolet Corvette C8 6.2L LT2 Single Spring Kit - KT4053 Ferrea Chevrolet Corvette C8 6.2L LT2 Single Spring Kit MSRP: $1,148.32 Was: Now: $941.61 Add to Cart
Supertech Nissan VK56 Dual Valve Spring Kit - SPRK-TS1012-N35-32 Supertech Nissan VK56 Dual Valve Spring Kit MSRP: $1,398.72 Was: Now: $973.95 Add to Cart
Supertech Toyota 3UR-FE 32V Dual Valve Spring Kit (Seat Pressure 62 at 37.80) - SPRK-EC3027D-3UR Supertech Toyota 3UR-FE 32V Dual Valve Spring Kit (Seat Pressure 62 at 37.80) MSRP: $1,575.07 Was: Now: $1,096.74 Add to Cart
Supertech Toyota 3UR-FE 32V Dual Valve Spring Kit - SPRK-EC3025D-3UR Supertech Toyota 3UR-FE 32V Dual Valve Spring Kit MSRP: $1,575.07 Was: Now: $1,096.74 Add to Cart
Supertech Audi V8 Beehive Valve Spring Kit - SPRK-A2416N-BE2-V8 Supertech Audi V8 Beehive Valve Spring Kit MSRP: $1,380.61 Was: Now: $961.33 Add to Cart
Supertech Nissan VQ35DE 24V/VK56 32V Dual Valve Spring Kit - SPRK-TS1015-N352-32 Supertech Nissan VQ35DE 24V/VK56 32V Dual Valve Spring Kit MSRP: $1,400.42 Was: Now: $975.13 Add to Cart
Supertech Audi V8 4.2L 40V Dual Valve Spring Kit - SPRK-AUDI4.2T Supertech Audi V8 4.2L 40V Dual Valve Spring Kit MSRP: $1,376.69 Was: Now: $958.61 Add to Cart
Manley Alcohol/Fuel Classes/ProMod NexTek Series High Performance Valve Springs - 221461-16 Manley Alcohol/Fuel Classes/ProMod NexTek Series High Performance Valve Springs MSRP: $1,078.41 Was: Now: $982.65 Add to Cart
Manley Pro Stock / Fuel / Alcohol NexTek Series Drag Race Valve Springs - 221450-16 Manley Pro Stock / Fuel / Alcohol NexTek Series Drag Race Valve Springs MSRP: $1,057.71 Was: Now: $963.79 Add to Cart
GSC P-D Toyota 2JZ Dual Valve Spring and Ti Retainer Kit - 5266 GSC P-D Toyota 2JZ Dual Valve Spring and Ti Retainer Kit MSRP: $1,184.02 Was: Now: $970.99 Add to Cart
GSC P-D Porsche 991 Turbo Conical Spring Set - 5094 GSC P-D Porsche 991 Turbo Conical Spring Set MSRP: $1,155.00 Was: Now: $947.19 Add to Cart
GSC P-D Porsche GT3/GT3 (991) Single Conical Valve Spring Ti Retainer Steel Spring Seat Kit - 5092 GSC P-D Porsche GT3/GT3 (991) Single Conical Valve Spring Ti Retainer Steel Spring Seat Kit MSRP: $1,155.00 Was: Now: $947.19 Add to Cart
GSC P-D Nissan GTR VR38DETT Single Conical Valve Spring & Titanium Retainer Kit (Race Only) - 5089 GSC P-D Nissan GTR VR38DETT Single Conical Valve Spring & Titanium Retainer Kit (Race Only) MSRP: $1,191.47 Was: Now: $977.10
Ferrea Ford Coyote 5.0L Dual Special Alloy Valve Spring - Set of 32 - S10146 Ferrea Ford Coyote 5.0L Dual Special Alloy Valve Spring - Set of 32 MSRP: $1,036.80 Was: Now: $944.73 Add to Cart
Ferrea Toyota 2JZGE/2JZGTE 380lbs Rate Inch Dual Valve Spring - Set of 24 - S10109 Ferrea Toyota 2JZGE/2JZGTE 380lbs Rate Inch Dual Valve Spring - Set of 24 MSRP: $1,128.72 Was: Now: $1,028.38 Add to Cart
Ferrea 1.600in to 1.650in 1.160/1.610 OD 0.835/1.160 ID Dual Valve Spring - Set of 16 - S10076 Ferrea 1.600in to 1.650in 1.160/1.610 OD 0.835/1.160 ID Dual Valve Spring - Set of 16 MSRP: $1,057.28 Was: Now: $963.32 Add to Cart
Ferrea Toyota Supra 3.0L B58 Turbo Spring Kit - KT4048 Ferrea Toyota Supra 3.0L B58 Turbo Spring Kit MSRP: $1,185.60 Was: Now: $972.28 Add to Cart
Ferrea Toyota 2JZ Turbo Dual Spring Kit - KT4046 Ferrea Toyota 2JZ Turbo Dual Spring Kit MSRP: $1,641.36 Was: Now: $1,346.00 Add to Cart
Ferrea 17-18 Audi 2.5 TFSI Single Spring Kit - KT4042 Ferrea 17-18 Audi 2.5 TFSI Single Spring Kit MSRP: $1,121.10 Was: Now: $919.31 Add to Cart
Ferrea 90-00 BMW E36 Dual Spring Kit - KT4041 Ferrea 90-00 BMW E36 Dual Spring Kit MSRP: $1,619.76 Was: Now: $1,328.28 Add to Cart
Ferrea 98-05 VW 1.8T Single/Dual Spring Kit - KT4040 Ferrea 98-05 VW 1.8T Single/Dual Spring Kit MSRP: $1,182.40 Was: Now: $969.62 Add to Cart