QA1 MOD Series Front Coilover Kit - Double Adjustable, Large Tapered Flat Spring, 550 lbs/in Rate - 1958 Chevrolet Del Ray Sprinter 3500 H&R Super Race Springs are

H&R Super Race Springs are produced from special spring steel

These FX37 w/CDC coilovers arrive tuned for the S51 chassis and ready to bolt in — no break-in period

For most daily-driven Mitsubishi EVO 9 builds

2016 Subaru Outback FWD (BSF)

2012 Suzuki SX4 AWD (YB41)

QA1 MOD Series Front Coilover Kit - Double Adjustable, Large Tapered Flat Spring, 550 lbs/in Rate - 1958 Chevrolet Del Ray Sprinter 3500 H&R Super Race Springs aredon't be limited to adjustments! Completely re valve in minutes with the MOD Series Shock. Designed specifically on your 1958 Chevrolet Del Ray to meet the demands required by today's high performance drag race and handling pro touring cars, QA1's multi patent pending MOD Series shock will transform the way racers respond to changing track conditions and configurations. The key element to this tunability is QuickTune Technology: dry modular valve