QA1 MOD Series Rear Pro Coilover Kit, 250 lbs/in Rate - 1987-1989 Pontiac Safari 164 75" ID Swift springs are

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QA1 MOD Series Rear Pro Coilover Kit, 250 lbs/in Rate - 1987-1989 Pontiac Safari 164 75" ID Swift springs aredon't be limited to adjustments! Completely re valve in minutes with the MOD Series Shock. Designed specifically on your 1987 1989 Pontiac Safari 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