Valve Springs, Retainers

Supertech BMW S42/M42/M50/S50/M52/M54 Dual Valve Spring Kit

Supertech BMW M54 16 Dual Valve Spring Kit

Supertech BMW S42/M42/M50/S50/M52/M54 Dual Valve Spring Kit

Supertech Honda H22 Dual Valve Spring Kit

Supertech Nissan VR30DDTT Conical Valve Spring Kit

Supertech BMW N54 Conical Spring Kit - Rate 7.25lbs/mm

Supertech BMW N54 24V 3.0L BMW N54 Conical Spring Kit (Use Factory Valve Stem Seal)

Supertech Ford/Mazda DURATEC 2.0L/2.3L Beehive Valve Spring Kit (Use OEM Retainer/OEM Seat)

Supertech Ford Coyote 5.0L 122lb/40mm Seat Pressure Beehive Valve Spring Kit

Supertech Ford Coyote 5.0L Beehive Valve Spring Kit

Supertech Sea-Doo 4TEC Dual Valve Spring Kit

Supertech GM ECOTEC 2.0L Dual Valve Spring Kit (Requires Smaller Seal)

Supertech BMW S63 V8 Conical Spring Kit - Rate 83lbs (Ex) 80lbs (In)

Supertech VW/Audi 2.7T 30V 6cyl Single & Dual Valve Spring Kit

Supertech VW/Audi 1.8T 20V 4cyl Dual Valve Spring Kit

Supertech VW/Audi 1.8T 20V 4cyl Dual Valve Spring Kit

Supertech Toyota/Lotus Elise 2ZZ Single Valve Spring Kit

Supertech VW/Audi 2.0L FSI EA113 Single Valve Spring Kit

Supertech Audi 2.5T FSI/TFSI/EA113/EA888 Single Valve Spring Kit

Supertech VW 2.5L 5cyl 20V Single Valve Spring Kit

Supertech BMW S54 24V 3.2L Dual Valve Spring Kit

Supertech BMW S54 Dual Valve Spring Kit (w/SEAT-BMS55)

Supertech Nissan SKYLINE RB25 DOHC 24V (w/Hydraulic Lifters) Single Valve Spring Kit