MM Torque-arm spring, Street Performance, pair

Spring rate: 375-440 lb/in.

Approximate lowering values from stock: 1.1" to 1.4" Rear

Lowering amounts are approximate.

We determined these lowering amounts by installing this spring set on several different Mustangs. All before-and-after measurements were done with a full tank of gas and the tire pressures set to 32 PSI.