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

Supertech Toyota 4AGE 20V Single Valve Spring Kit (Silver Top)

Supertech BMW S54 24V 3.2L Dual Valve Spring Kit

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

Supertech Nissan SKYLINE RB20 DOHC 24V (w/Hydraulic Lifters) Single Valve Spring Kit

Supertech Nissan SR20VE 2.0L DOHC Dual Valve Spring Kit

Supertech Mazda Miata 1.8 1.8L Dual Valve Spring Kit

Supertech VW VR6 Dual Valve Spring - Set of 20

Supertech VW VR6 Dual Valve Spring - Set of 12

Supertech Toyota Supra 2JZ-GE/2JZ-GTE Single Valve Spring - Set of 16

Supertech Toyota Supra 2JZ-GE/2JZ-GTE Dual Valve Spring - Set of 16

Supertech Mini Cooper N14B16 / N18B16 Beehive Valve Spring (Fits OEM Retainer) - Set of 16

Supertech Honda B16A/B17A/B18C Dual Valve Spring - Set of 16

Supertech Dual Valve Spring - 29/21.80mm-21-15.5mm - 22mm CB - 18.3mm Max Net Lift - Set of 16

Supertech Dual Valve Spring - 30/21.80mm-21.8/16.2mm - 22mm CB - Rate 13.2lbs/mm - Set of 16

Supertech Honda K20/K24/F20C1/F22C1 Dual Valve Spring - Set of 16

Supertech Honda B16A / B17A / B18C Dual Valve Springs 85lb - Set of 16

Supertech BMW M50/M52/S50/S52 Dual Valve Spring - Set of 24