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MM News

NASA Racers! MM will support NASA road racers with $1,000 contingency prizes for the American Iron, American Iron Extreme, and Spec Iron at the 2019 National Champions. You must register to be eligible.

New! Read the article Maximum Motorsports Tames Fox & SN95 Mustang Rear Suspensions on FordMuscle.com.

MRT Exhaust! MM now offers premium MRT cat-back exhaust systems for 1996-2004 Mustangs.

New! for Street & Strip Mustangs! Big-bore rear wheel cylinders for 1979-1993 Mustang with 9" drum brakes. Improves braking when running big rear tires and front skinnies, and/or different OEM front brakes.

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'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

Bumpsteer kit, 2005-2014 Mustang, tapered-stud style
Actual product may differ from photo.


  • Item # Mm5TR-2
  • Manufacturer: Maximum Motorsports
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Bumpsteer kit with adjustable outer tie-rod ends for correcting bumpsteer on 2005-2014 Mustang. Tapered-stud style. Fits both 2005-2010 Mustang steering rack and 2011-2014 Mustang electric power steering rack.


Product features

  • Direct bolt-on installation, no drilling of the spindle.
  • MM-designed tapered stud with rolled threads (not the weaker machined threads found on other tapered studs).
  • Studs are heat treated for maximum strength.
  • Longer spacer bushings are made of thick-wall steel to ensure they will not buckle when the 5/8" nut is properly tightened.
  • A variety of spacer thicknesses ensure the ability to properly adjust bumpsteer.
  • Black anodized aluminum adapter sleeve is threaded to match 2005-2014 inner tie-rod ends.
  • Hex on the aluminum adapter sleeve is easily accessible because it is at the inner end of the aluminum sleeve, clear of the tire.


The stock tie-rod geometry on the 2005-2014 Mustang induces a significant amount of bumpsteer. This was purposely designed to increase understeer when the car is pushed hard into a corner. This excessive bumpsteer is particularly noticeable when the vehicle is lowered.

These Adjustable Tie-rod Ends allow the bumpsteer to be adjusted and dramatically reduced, reducing understeer and improving stability and overall handling.

"Bumpsteer" refers to changes in the front toe setting as the suspension moves up and down. If the toe setting changes, the car will steer itself, without any input from the driver. This makes the car feel unstable and unpredictable over bumps, with body roll, or during brake dive.

Fits all 2005-2014 Mustangs.