QA1 MOD Series Front Coilover Kit - Double Adjustable, Tapered Pigtail Spring, 600 lbs/in Rate - 1967-1969 Pontiac Firebird bilstein-b8-5100-suspension-shock-absorber-14-13-in-collapsed Part Number: M 508 111

Part Number: M 508 111

ZTW (C170) are principally designed to reduce body roll or sway

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QA1 MOD Series Front Coilover Kit - Double Adjustable, Tapered Pigtail Spring, 600 lbs/in Rate - 1967-1969 Pontiac Firebird bilstein-b8-5100-suspension-shock-absorber-14-13-in-collapsed Part Number: M 508 111don't be limited to adjustments! Completely re valve in minutes with the MOD Series Shock. Designed specifically on your 1967 1969 Pontiac Firebird 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