QA1 MOD Series Front Coilover Kit - Double Adjustable, Tapered Pigtail Spring, 650 lbs/in Rate - 1965-1967 Buick Gran Sport 740i Large main piston for quick

Large main piston for quick response and wide adjustment range

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QA1 MOD Series Front Coilover Kit - Double Adjustable, Tapered Pigtail Spring, 650 lbs/in Rate - 1965-1967 Buick Gran Sport 740i Large main piston for quickdon't be limited to adjustments! Completely re valve in minutes with the MOD Series Shock. Designed specifically on your 1965 1967 Buick Gran Sport 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