QA1 CR-S Tapered High Travel Coil Spring - 4.125" ID, 400 lbs/in Rate, 10" Length - 1971-1985 Oldsmobile Delta 88 135i 2023 BMW 530i G30

2023 BMW 530i G30

2012 Toyota Alphard 350S

2006 Audi A3 (8L1)

0 EcoBoost 2WD (3rd Gen) utilize inverted / upside down technology

Every kit is extensively tested on the S51 chassis and refined until it balances ride quality with performance — the reason FX37 w/CDC coilovers from BC Racing are the best-selling adjustable kits in their segment worldwide

QA1 CR-S Tapered High Travel Coil Spring - 4.125" ID, 400 lbs/in Rate, 10" Length - 1971-1985 Oldsmobile Delta 88 135i 2023 BMW 530i G30Available in 7", 9", 10", 12", 14" and 16" lengths, QA1 offers an assortment of High Travel Springs for the 1971 1985 Oldsmobile Delta 88 with a silver powder coated finish. Made in the USA, these 2" I. D. High Travel Springs are manufactured from specially designed high tensile, chrome silicon alloy spring wire, which allows them to have fewer coils and a smaller wire diameter. As a result, these springs are lighter and have increased travel due to