Supertech Honda R18 SOHC I-Vtec Single Valve Spring Kit - SPRK-H1003S-R18 MSRP: $819.60 Was: Now: $570.70 Add to Cart
Supertech Honda/Acura J30/J32 Single Valve Spring Kit - SPRK-H1003S-J32 MSRP: $942.34 Was: Now: $656.17 Add to Cart
Supertech Honda D16A6 Single Valve Spring Kit (Exhaust Only) - SPRK-H1003S MSRP: $562.77 Was: Now: $391.86 Add to Cart
Supertech Honda D16Z/D16Y8/D17 Single Valve Spring Kit - SPRK-H1002S MSRP: $497.35 Was: Now: $346.32 Add to Cart
Supertech Hyundai 3.8L 24V Dual Valve Spring Kit - SPRK-H1002D-HY MSRP: $1,128.84 Was: Now: $786.03 Add to Cart
Supertech Honda B16/B18C Beehive Valve Spring Kit - SPRK-H1002D-BE MSRP: $693.65 Was: Now: $483.00 Add to Cart
Supertech Nissan KA24 Dual Valve Spring Kit - SPRK-H1002D-240 MSRP: $651.14 Was: Now: $453.40 Add to Cart
Supertech Honda B16/B18C Dual Valve Spring Kit (w/Titanium Retainers) - SPRK-H1002D MSRP: $569.33 Was: Now: $396.43 Add to Cart
Supertech Opel/Vauxhall C20XE 16V Dual Valve Spring Kit - SPRK-H1002-C20 MSRP: $651.14 Was: Now: $453.40 Add to Cart
Supertech Opel/Vauxhall C20XE 16V Dual Valve Spring Kit - SPRK-H1001D-C20 MSRP: $651.14 Was: Now: $453.40 Add to Cart
Supertech Honda K24Z7 Dual Valve Spring Kit - SPRK-H1000D-Z7 MSRP: $739.28 Was: Now: $514.77 Add to Cart
Supertech Honda C30 Dual Valve Spring Kit - SPRK-H1000D-NSX MSRP: $976.68 Was: Now: $680.07 Add to Cart
Supertech BMW S42/M42/M50/S50/M52/M54 Dual Valve Spring Kit - SPRK-H1000D-BM-ST MSRP: $927.61 Was: Now: $645.91 Add to Cart
Supertech BMW S50B32 (Euro Version) Dual Valve Spring Kit - SPRK-H1000D-BM-B32E MSRP: $1,050.31 Was: Now: $731.35 Add to Cart
Supertech BMW S42/M42/M50/S50/M52/M54 Dual Valve Spring Kit - SPRK-H1000D-BM MSRP: $1,050.31 Was: Now: $731.35 Add to Cart
Supertech Nissan KA24 Dual Valve Spring Kit - SPRK-H1000D-240 MSRP: $651.14 Was: Now: $453.40 Add to Cart
Supertech Toyota 1FZ-FE 24V Dual Valve Spring Kit - SPRK-H1000D-1FZ MSRP: $910.92 Was: Now: $634.28 Add to Cart
Supertech Ford ECOBOOST 1.5L/1.6L Beehive Valve Spring Kit - SPRK-FE56BE MSRP: $605.31 Was: Now: $421.49 Add to Cart
Supertech BMW N54 24V 3.0L BMW N54 Conical Spring Kit (Use Factory Valve Stem Seal) - SPRK-FE20N54-BE MSRP: $1,082.33 Was: Now: $753.48 Add to Cart
Supertech Ford/Mazda DURATEC 2.0L/2.3L Beehive Valve Spring Kit (Use OEM Retainer/OEM Seat) - SPRK-FE20BE MSRP: $392.65 Was: Now: $273.40 Add to Cart
Supertech Honda F22A 16V Single Valve Spring Kit - SPRK-F22AB MSRP: $579.15 Was: Now: $403.27 Add to Cart
Supertech Yamaha FZR-1800 Single Valve Spring Kit - SPRK-EC3027S-FZR MSRP: $627.81 Was: Now: $437.15 Add to Cart
Supertech Honda R18 SOHC I-Vtec Single Valve Spring Kit - SPRK-H1003S-R18 Supertech Honda R18 SOHC I-Vtec Single Valve Spring Kit MSRP: $819.60 Was: Now: $570.70 Add to Cart
Supertech Honda/Acura J30/J32 Single Valve Spring Kit - SPRK-H1003S-J32 Supertech Honda/Acura J30/J32 Single Valve Spring Kit MSRP: $942.34 Was: Now: $656.17 Add to Cart
Supertech Honda D16A6 Single Valve Spring Kit (Exhaust Only) - SPRK-H1003S Supertech Honda D16A6 Single Valve Spring Kit (Exhaust Only) MSRP: $562.77 Was: Now: $391.86 Add to Cart
Supertech Honda D16Z/D16Y8/D17 Single Valve Spring Kit - SPRK-H1002S Supertech Honda D16Z/D16Y8/D17 Single Valve Spring Kit MSRP: $497.35 Was: Now: $346.32 Add to Cart
Supertech Hyundai 3.8L 24V Dual Valve Spring Kit - SPRK-H1002D-HY Supertech Hyundai 3.8L 24V Dual Valve Spring Kit MSRP: $1,128.84 Was: Now: $786.03 Add to Cart
Supertech Honda B16/B18C Beehive Valve Spring Kit - SPRK-H1002D-BE Supertech Honda B16/B18C Beehive Valve Spring Kit MSRP: $693.65 Was: Now: $483.00 Add to Cart
Supertech Nissan KA24 Dual Valve Spring Kit - SPRK-H1002D-240 Supertech Nissan KA24 Dual Valve Spring Kit MSRP: $651.14 Was: Now: $453.40 Add to Cart
Supertech Honda B16/B18C Dual Valve Spring Kit (w/Titanium Retainers) - SPRK-H1002D Supertech Honda B16/B18C Dual Valve Spring Kit (w/Titanium Retainers) MSRP: $569.33 Was: Now: $396.43 Add to Cart
Supertech Opel/Vauxhall C20XE 16V Dual Valve Spring Kit - SPRK-H1002-C20 Supertech Opel/Vauxhall C20XE 16V Dual Valve Spring Kit MSRP: $651.14 Was: Now: $453.40 Add to Cart
Supertech Opel/Vauxhall C20XE 16V Dual Valve Spring Kit - SPRK-H1001D-C20 Supertech Opel/Vauxhall C20XE 16V Dual Valve Spring Kit MSRP: $651.14 Was: Now: $453.40 Add to Cart
Supertech Honda K24Z7 Dual Valve Spring Kit - SPRK-H1000D-Z7 Supertech Honda K24Z7 Dual Valve Spring Kit MSRP: $739.28 Was: Now: $514.77 Add to Cart
Supertech Honda C30 Dual Valve Spring Kit - SPRK-H1000D-NSX Supertech Honda C30 Dual Valve Spring Kit MSRP: $976.68 Was: Now: $680.07 Add to Cart
Supertech BMW S42/M42/M50/S50/M52/M54 Dual Valve Spring Kit - SPRK-H1000D-BM-ST Supertech BMW S42/M42/M50/S50/M52/M54 Dual Valve Spring Kit MSRP: $927.61 Was: Now: $645.91 Add to Cart
Supertech BMW S50B32 (Euro Version) Dual Valve Spring Kit - SPRK-H1000D-BM-B32E Supertech BMW S50B32 (Euro Version) Dual Valve Spring Kit MSRP: $1,050.31 Was: Now: $731.35 Add to Cart
Supertech BMW S42/M42/M50/S50/M52/M54 Dual Valve Spring Kit - SPRK-H1000D-BM Supertech BMW S42/M42/M50/S50/M52/M54 Dual Valve Spring Kit MSRP: $1,050.31 Was: Now: $731.35 Add to Cart
Supertech Nissan KA24 Dual Valve Spring Kit - SPRK-H1000D-240 Supertech Nissan KA24 Dual Valve Spring Kit MSRP: $651.14 Was: Now: $453.40 Add to Cart
Supertech Toyota 1FZ-FE 24V Dual Valve Spring Kit - SPRK-H1000D-1FZ Supertech Toyota 1FZ-FE 24V Dual Valve Spring Kit MSRP: $910.92 Was: Now: $634.28 Add to Cart
Supertech Honda H22 Dual Valve Spring Kit - SPRK-H1000D Supertech Honda H22 Dual Valve Spring Kit MSRP: $569.33 Was: Now: $396.43 Add to Cart
Supertech Ford ECOBOOST 1.5L/1.6L Beehive Valve Spring Kit - SPRK-FE56BE Supertech Ford ECOBOOST 1.5L/1.6L Beehive Valve Spring Kit MSRP: $605.31 Was: Now: $421.49 Add to Cart
Supertech BMW N54 24V 3.0L BMW N54 Conical Spring Kit (Use Factory Valve Stem Seal) - SPRK-FE20N54-BE Supertech BMW N54 24V 3.0L BMW N54 Conical Spring Kit (Use Factory Valve Stem Seal) MSRP: $1,082.33 Was: Now: $753.48 Add to Cart
Supertech Ford/Mazda DURATEC 2.0L/2.3L Beehive Valve Spring Kit (Use OEM Retainer/OEM Seat) - SPRK-FE20BE Supertech Ford/Mazda DURATEC 2.0L/2.3L Beehive Valve Spring Kit (Use OEM Retainer/OEM Seat) MSRP: $392.65 Was: Now: $273.40 Add to Cart
Supertech Honda F22A 16V Single Valve Spring Kit - SPRK-F22AB Supertech Honda F22A 16V Single Valve Spring Kit MSRP: $579.15 Was: Now: $403.27 Add to Cart
Supertech Honda D16A1 Single Valve Spring Kit - SPRK-EC3027S-ZC Supertech Honda D16A1 Single Valve Spring Kit MSRP: $628.24 Was: Now: $437.45
Supertech Yamaha FZR-1800 Single Valve Spring Kit - SPRK-EC3027S-FZR Supertech Yamaha FZR-1800 Single Valve Spring Kit MSRP: $627.81 Was: Now: $437.15 Add to Cart