Supertech Toyota 3UR-FE 32V Dual Valve Spring Kit
Supertech Toyota Tacoma 2TRFE Dual Valve Spring Kit
Supertech Toyota 2GR-FE 24V Dual Valve Spring Kit
Supertech GM ECOTEC 2.0L Dual Valve Spring Kit (Requires Smaller Seal)
Supertech Toyota Supra (A90)/BMW B58B Conical Spring Kit
Supertech Audi V8 4.2L 40V Dual Valve Spring Kit
Supertech Audi V6 2.7L 30V Dual Valve Spring Kit
Supertech Audi V8 (32V) Single Valve Spring Kit
Supertech Audi V10 (40V) Single Valve Spring Kit
Supertech Toyota 4AGE 20V Single Valve Spring Kit (Silver Top)
Supertech Toyota 4AGE 20V Single Valve Spring Kit (Black Top)
Supertech BMW S54 Dual Valve Spring Kit (w/SEAT-BMS54)
Supertech Toyota 2JZ Single Valve Spring Kit
Supertech Nissan SKYLINE RB20 DOHC 24V (w/Hydraulic Lifters) Single Valve Spring Kit
Supertech Toyota 3SGTE 2.0L Single Valve Spring Kit
Supertech Toyota 3SGTE Single Valve Spring
Supertech Nissan SR20VE P12 2.0L DOHC Dual Valve Spring Kit
Supertech Nissan SR20VE 2.0L DOHC Dual Valve Spring Kit
Supertech Subaru BRZ/Scion FRS/Toyota GT86 Dual Valve Spring Kit
Supertech Nissan SKYLINE RB25 DOHC 24V (w/Hydraulic Lifters) Single Valve Spring Kit
Supertech Porsche M96 Dual Valve Spring Kit
Supertech Subaru BRZ/Toyota 86 2.0L Dual Valve Spring Kit