QA1 Pro-Rear Twintube Coil-Over Rear Single Adjustable Shock Kit - 1301-1550 lb - Progressive 130-250 lb/in Spring Rate Coilover Adjuster Tool Upper hose kit eliminates the

Upper hose kit eliminates the concern of the upper hose collapsing and fits a variety of radiator widths

The Relief valve has a pressure adjustable screw-in plug instead of a cup plug

Nipple for header collector

Hassle Free Easy Bolt-On Installation

Flattened Machined Catch Can Top And Knurled Bottom Allow Ease Of Maintenance

QA1 Pro-Rear Twintube Coil-Over Rear Single Adjustable Shock Kit - 1301-1550 lb - Progressive 130-250 lb/in Spring Rate Coilover Adjuster Tool Upper hose kit eliminates theUpgrade your rear end with QA1's Pro Rear System. Available in double adjustable, single adjustable and ride sensitive valving non adjustable options,each adjustment has been carefully defined to provide the ideal horse curve to maximize performance. With evenly spaced valving changes throughout the adjustment range, there are no jumps when adjusting between any two clicks. These Pro Rear Systems are commonly used in drag racing, street performance