D2 Racing RS Series Coilovers (D-AU-37-1-RS) 31015 SB2-HDG4 kit features ACT's most

SB2-HDG4 kit features ACT's most popular Heavy Duty pressure plate

Simply remove the AFM valve motors from the factory exhaust

is that these couplers fatigue with time and tear resulting in the engine drawing in unmetered air after the Mass Air Flow sensor which then results in a P0171 lean bank 1 code

Patented Optics

VW Golf ED30

D2 Racing RS Series Coilovers (D-AU-37-1-RS) 31015 SB2-HDG4 kit features ACT's mostThe RS Series suspension kit is our most popular coilover. Featuring a 36 way damping and rebound adjustable monotube design, RS Series coilovers are perfect for the modified street car that also sees occasional track days. This coilover has separate height and preload adjustments allowing for optimal suspension tuning while maintaining full strut travel at all times. Key Features: Uses either a rubber upper mount or pillowball rubber upper mounts.