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MM News

New! MM Technical Services: MM’s Engineering Team will provide setup recommendations specifically tailored for your Mustang. Get help choosing options for a Maximum Grip Box, deciding on coil-over spring rates, selecting a brake master cylinder, and advice on converting your Fox to Hydroboost.

New! Swapping a Coyote into a Fox Mustang? MM's Hydroboost Conversion Kits allow easy installation of a 1996-2004 Mustang Hydroboost power brake assist unit into a 1979-1993 Mustang.

New! Swapping an IRS into your Fox Mustang? MM makes it easier with a brake line kit made just for this conversion. Bolts-in, with no cutting or flaring of brake lines. Designed to fit standard IRS brake hoses.

New! MM now offers a tool for the giant nut securing a Mustang Hydroboost. This MM socket fits the 1-7/8" nut holding the Hydroboost to the firewall mount. Required when changing a Hydroboost unit.

New! MM's billet aluminum Pedal Box Spacer for Fox Mustangs. Replace the breakage-prone OEM plastic spacer when converting to manual brakes or Hydroboost.

Canadians! Please read the latest about ordering from Canada/shipping to Canada.

We've posted the parts list and link to the video of MM's Mustang in /DRIVE Tuner car Shootout

MM Tool Package for IRS Differential Cooler
Actual product may differ from photo.


  • Item # MMT-7
  • Manufacturer: Maximum Motorsports


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MM Tool Package for OC-10 Installation

There is no need to spend time searching for the proper taps and drill bits with this Maximum Motorsports Tool Package. Includes the thread taps required to install the OC-10 MM IRS Differential Cooler, and the correct matching drill bits for those taps. Thread taps included are 1/4-18 NPT and 3/8-18 NPT; drill bits included are 7/16", 9/16" reduced shank, and 3/4" reduced shank.