With multiple S550 IRS cars
in the 1.1 sixty-foot zone, rest assured that our specific valving and
spring rates for your application will provide you with the best
This Vikin Warrior coilover kit features KellTrac spec'd spring rates, compression and rebound
valving specific for S550 IRS applications.
*We recommend BMR, UPR or Maximum Motorsports Caster Camber plates to complete the installation of this kit.
*ALL KELLTRAC SPEC SHOCK AND STRUT PURCHASES INCLUDE LIMITED REMOTE SUPPORT*