UMI rear coilover kit adjusts ride height & damping for Quick PerformanceThe UMI bolt in rear coilover kit provides comprehensive adjustments for ride height, spring rate, and damping, in addition to enabling trailing arm adjustments for precise calibration of the instant center. This kit is equipped with a fortified upper mount, specifically designed to accommodate a 2 1 2 racing coilover with a double shear configuration. The lower brackets, engineered through Finite Element Analysis (FEA), are reinforced and are

jig built DOM a-arms are supplied with a durable gloss red or black powder coat finish which guarantees your performance parts stay beautiful on your street car

We do not recommend using the 4056-3 with cargo coils or above stock height cars

and weak materials that result in traction loss and poor handling

this easy bolt-on setup installs using OEM hardware

The upper arms have Roto-Joints on one end and are fully adjustable to set pinion angle and lateral location

Adjusting the pinion angle is crucial for reducing wheel hop

Kit includes 5/8” grade 8 bolts

comfortable ride

SI-1 Complete Fuel System Cleaner

Rear lower control arms are a necessary upgrade for any General Motors A-Body vehicle

This relatively low mixture is due to the low RPMs at which these engines run (no more than 12

the P1 P-01R has set track records and carried countless racers to podium finishes—all while being capable of driving to and from the track