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USE HIGH-FLOW CATS OR MAKE TESTPIPES TO FIT
Replace the flimsy factory live axle Mustang upper and lower control arms with a complete set of these popular BBK upper and lower control arms
Feel: Smooth engagement
They are a direct fit to the stock catalytic converters
BBK 86-04 Mustang Front Spring Isolators - Polyurethane (2545) 1553 USE HIGH-FLOW CATS OR MAKEThese BBK Performance polyurethane 79 04 Mustang front spring isolators are recommended to be used when installing lowering springs on your 79 04 Ford Mustang. Overtime the factory rubber isolators will dry out crack and eventually turn to dust causing the springs to then rub against the bare metal control arms which will cause harsh vibration noises to transmit through the vehicle's chassis when driving. These BBK polyurethane front spring Isolators