Quantum Fuel Systems - Heavy Duty Control Arms

Heavy Duty control arms improve Street Performance for daily-driven Mustangs and are also suitable for limited open-track use. They are for Mustangs with a moderate power level (up to 400 rwhp). They will improve handling and traction, with only a minimal change in NVH (Noise, Vibration, Harshness).

Click on the Tech Info button below for technical information about MM Heavy Duty control arms.
  Over 400 rwhp? Use our Extreme Duty control arms.

Under 400 rwhp, but if launched hard from a standing start, meaning a drag race style of start from a dead stop, whether on the street or at the strip: Use our Extreme Duty control arms.

2 different types of the MM Heavy Duty Rear Lower Control Arms are available:

Ride height adjustable and non-adjustable.