QA1 MOD Series Front Coilover Kit - Double Adjustable, Tapered Pigtail Spring, 250 lbs/in Rate - 1964-1967 Buick Special EuroVan 6 Vti (EK4) are 2-way

6 Vti (EK4) are 2-way adjustable shock absorbers which are based upon competition 3-way adjustable shock absorbers

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QA1 MOD Series Front Coilover Kit - Double Adjustable, Tapered Pigtail Spring, 250 lbs/in Rate - 1964-1967 Buick Special EuroVan 6 Vti (EK4) are 2-waydon't be limited to adjustments! Completely re valve in minutes with the MOD Series Shock. Designed specifically on your 1964 1967 Buick Special 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