QA1 Rear Pro Coilover Kit - Double Adjustable, 200 lbs/in Rate - 1973-1977 Buick Regal TRX 2024 Lexus RC-F (USC10)

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

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QA1 Rear Pro Coilover Kit - Double Adjustable, 200 lbs/in Rate - 1973-1977 Buick Regal TRX 2024 Lexus RC-F (USC10)QA1 offers bolt in Rear Coil Over Conversion Kits for the 1973 1977 Buick Regal. These kits include specially designed USA made mounting brackets and single or double adjustable Aluminum Shocks, springs and all necessary hardware. Single Adjustable Shocks provide 18 positions of simultaneous rebound and compression adjustment while QA1's double Adjustable Shocks provide 18 positions of compression adjustment and 18 positions of rebound adjustment, for