FAQs & Tech Tips

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

IRS Subframe Bushing Removal Tool, 1999-04 Cobra
Actual product may differ from photo.


  • Item # MMT-6
  • Manufacturer: Maximum Motorsports


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MM developed this tool to help with the removal of the stock rubber bushings from the IRS subframe.

Not only does this tool make the job much easier, it also reduces the time spent removing the stock bushings by at least an hour. Pay only $19.96 when you purchase the MMT-6 tool along with the MMIRSU-1 or MMIRSU-2 bushing kits.

If you buy both items separately, your discount will be applied by our salesmen when your order is processed. It won't appear during check-out. Purchase this tool as an option from the subframe bushing page and it applies the discount automatically.

You can read Maximum Motorsports' highly detailed MMT-6 Subframe Bushing Removal Tool installation instructions before purchase.

Due to the limited space envelope around the IRS Subframe, Maximum Motorsports highly recommends the complete removal of the IRS subframe from the vehicle. Installation time and frustration will be greatly reduced.