QA1 CR-S Tapered High Travel Coil Spring - 4.125" ID, 300 lbs/in Rate, 11" Length - 1971-1981 Pontiac Catalina 350SL VDC Limited (BP) allow for

VDC Limited (BP) allow for easy on-car adjustment and fine tuning of camber settings resulting in improved traction

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Bilstein B6 Performance (DampTronic) Dampers for the 2017-2021 BMW 230i are a performance upgrade to OE Dampers designed to be paired with OE factory springs

Monotube damper construction for long-life consistency

QA1 CR-S Tapered High Travel Coil Spring - 4.125" ID, 300 lbs/in Rate, 11" Length - 1971-1981 Pontiac Catalina 350SL VDC Limited (BP) allow forThese silver powder coated springs on your 1971 1981 Pontiac Catalina fit perfectly with QA1's Pro Coil Shock Systems. These springs are available with flat and pigtail ends and in 10" and 11" free lengths. Made with the highest quality materials, QA1'springs are strong, consistent and have a long life. All QA1'springs are manufactured using the highest quality materials for high strength, consistency and long life. They are cold wound, heat treated