QA1 MOD Series Front Coilover Kit - Double Adjustable, Large Tapered Flat Spring, 550 lbs/in Rate - 1973-1988 Buick Regal Z3 M 2025 Mercedes-Benz C-Class Sedan 4Matic

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QA1 MOD Series Front Coilover Kit - Double Adjustable, Large Tapered Flat Spring, 550 lbs/in Rate - 1973-1988 Buick Regal Z3 M 2025 Mercedes-Benz C-Class Sedan 4Maticdon't be limited to adjustments! Completely re valve in minutes with the MOD Series Shock. Designed specifically on your 1973 1988 Buick Regal 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 packs