Give your 1979-2004 Mustang an aggressive stance with Lowering Springs from BMR Suspension! Over time, stock springs can sag, get rusty, and simply wear out. BMR’s Lowering Spring Kit (SP027) lowers your Mustang by 1 inch and is designed for street performance applications. Please note: - BMR’s SP027 is not compatible with 1999-2004 Mustang Cobras with independent rear suspension.