Ferrea Toyota Supra 3.0L B58 Turbo Spring Kit

Supertech Nissan SKYLINE RB25 DOHC 24V (w/Solid Lifters) Dual Valve Spring Kit

Supertech Mazda Miata 1.6L Dual Valve Spring Kit (70lbs at 34.2mm Installed Height)

GSC P-D Subaru EJ Series Conical Valve Spring and Ti Retainer Kit

Supertech Toyota 4AGE 16V Dual Valve Spring - Set of 16

Supertech BMW S65/S84 Beehive Valve Spring - Set of 32 (Use w/Factory Retainer & Base)

Supertech Titanium Retainer for Spring 6.6mm Stem 7 Degree - Set of 16

GSC P-D Toyota Supra/BMW Z4 B58 Beehive Valve Spring and Ti Retainer Kit

GSC P-D BMW S58 Beehive Valve Spring & Ti Retainer Kit (Max Boost 70PSI)

Street Performance .585 in. Valve Spring Kit for 2005-2017 Twin Cam 88® Big Twins with stock heads (both 7mm) and 2004-Up XL models

GSC P-D Nissan VR30DDTT HP Conical Valve Spring Ti Retainer & Seat Kit (10500RPM/55PSI Max)

Ferrea 01-06 BMW S54 Dual Spring Kit

Ferrea 17-18 Audi 2.5 TFSI Single Spring Kit

Ferrea Acura K20 High Lift Drag Racing Dual Spring Kit

Ferrea Subaru WRX STI Endurance Dual Spring Kit

Ferrea Nissan GT-R VR38DETT Dual Spring Kit

Ferrea Honda S2000 Dual Spring Kit

Ferrea Acura K20 Drag Racing Dual Spring Kit

Ferrea Acura/Honda B18/B16 High Pressure Dual Spring Kit

COMP Cams Valve Spring 0.970in InnerCatalogUser 1

Ensure the equal installed height of all of your valve springs with these 1.437" outer diameter, .030" thick, heat-treated spring shims.CatalogUser 1

Brian Crower Mazda MZR Valve Spring & Retainer - Steel Retainers

Supertech Valve Spring Shim 1.140in OD .570in ID .030in Thick (Drop Ship Only)

Supertech VW VR6 12V Dual Valve Spring Kit

Supertech Subaru WRX/STi 16V Dual Valve Spring Kit

Supertech Subaru WRX/STi 16V Dual Valve Spring Kit

Supertech Honda Integra LS B18A/B Dual Valve Spring Kit

Supertech Toyota 2JZ Dual Valve Spring Kit

Supertech Nissan 300ZX VG30D Dual Valve Spring Kit

Supertech Ford/Mazda Duratec Single Valve Spring Kit - 55lbs at 35mm

Supertech 05-15 Ford Focus 2.0L Dual Valve Spring Kit

Supertech Ford Duratec/Mazda MZR 2.0L/2.3L/2.5L Dual Valve Spring Kit

Supertech VW VR6 24V R32 Dual Valve Spring Kit

Supertech Mazda Miata 1.8L Single Valve Spring Kit

Supertech Mazda Miata 1.8L Dual Valve Spring Kit

Supertech BMW B58 Valve Spring Kit (Set Pressure 84 at 37mm)

Supertech BMW B58 Beehive Valve Spring Kit

Supertech Hyundai Veloster 16V Beehive Valve Spring Kit 75lbs - 33.5mm / 172 - 10mm Lift / 22.2mm CB

Supertech 07-12 Mini Cooper R56 Beehive Valve Spring Kit

Supertech Nissan RB26DET 24V Single Valve Spring Kit