FAQs & Tech Tips

MM News

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

Bolt, Front Caliper to spindle, 2015 Mustang
Actual product may differ from photo.


  • Item # W716471-S439
  • Manufacturer: Ford


  • Bolt used to attach the caliper to the spindle on an S550 (2015+) Mustang
  • OEM Ford bolt designed for this specific application

Ford states these bolts are one-time use.


  • 2 bolts required per caliper
  • 4 bolts required per car

Related products

  • Replaces your used bolt with an OEM Ford bolt.
  • OEM Ford bolt designed for this specific application.
  • OEM-level corrosion protection.


  • S550 (2015+) Mustang