MM News

MM supports NASA road racers! MM offers contingency prizes for American Iron, American Iron Extreme, Spec Iron, and the Camaro-Mustang Challenge at both 2017 NASA Championship events, Western and Eastern. Read the details and register now.

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

Turnology drives their S550 after they installed the latest MM Starter Box. Read about the Starter Box and their test drive report.

/DRIVE just released a new video of MM's Mustang in their Tuner car Shootout. We've just posted the parts list and link to the video.

New! MM now offers an adjustable front swaybar for SN95 Mustangs. Currently in stock and ready to ship.

New! MM Starter Box for S550 Mustangs. Includes Koni dampers, MM Caster Camber Plates, choice of Eibach or H&R springs, and Eibach swaybars.

IRS Adjustable Complete Tie Rod Kit, 1999-04 Cobra
Actual product may differ from photo.

$249.00

  • Item # MMIRSTR-2
  • Manufacturer: Maximum Motorsports
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IRS Tie-rod and Bumpsteer Kit

The stock rear tie-rod is a weak link in the IRS system. An IRS-equipped Mustang with only moderate performance upgrades can easily attain loads high enough to deform a stock tie-rod. When a rear tie-rod deforms, the rear toe setting changes, causing significant handling and traction problems. A drag race style launch can cause significant deformation, and even complete failure, of the stock IRS tie-rod.

The MM Tie-rod is more robust than the stock unit, making it more capable of withstanding the rigors of drag racing and open track use. We designed it to be considerably stiffer than stock, so it will not deform or fail as easily as the stock tie-rod.

Not Just a Stronger Replacement

The MM Tie-rod kit is much more than just a stronger replacement for the stock unit. It has the additional benefit of providing a means to adjust bumpsteer. A Mustang equipped with IRS is more sensitive to rear bumpsteer than it is to front bumpsteer. Even very small changes in the toe setting of the rear suspension can cause instability and asymmetrical handling characteristics. The handling of an IRS-equipped Mustang will benefit greatly from fine-tuning its bumpsteer characteristics.

This kit provides the same bumpsteer adjustment at the outer tie-rod end as our MMIRSTR-1 kit. However, this kit also provides the ability to adjust the height of the inner tie-rod pivot. This gives a much wider range of bumpsteer adjustment possibilities. View the expanded details about the MMIRSTR-1 kit for more tech information about bumpsteer specific to the IRS. Also see MM's Bumpsteer Gauge (MMT-4).

The MM IRS Tie-rod Kit includes aluminum tie-rods, spherical rod-ends, an assortment of bumpsteer adjustment spacers, and tapered studs for the IRS uprights.