FAQs & Tech Tips

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

Brake Master Cylinder Recommendation Request

  • As a service to our customers purchasing master cylinders, installation kits, or other items related to master cylinders directly from Maximum Motorsports, we'll make a recommendation on which master cylinder to use for your particular Mustang and its brake system.
  • Required: You must purchase MM Tech Services before submitting this form.
  • Not buying direct from MM? Please contact your vendor for tech support.
  • Please answer all questions. The more accurate and complete your answers, the faster we can give you a response.
  • Failure to answer all of the questions will prevent us from being able to recommend the optimum master cylinder for your Mustang and your driving situation.
  • A response may take up to 5 days; the MM Engineering Team works during regular business hours, M-F.

Follow these instructions:

  1. Please copy and paste everything below into the email "Message" field on the Contact Us page.
  2. Type in your answers after each individual question.
  3. For those questions regarding items you would like us to make a recommendation for, answer with "Please recommend."
  4. Select "Tech Department" and then click "Send."

Got a smart phone?

  • Your phone may not let you complete this simple task.
  • You may need to copy and paste into a document first.
  • You may need to use a desktop computer.

Copy and paste everything below the line.


You must purchase MM Tech Services to get the required MM Web Order Number (MM website purchase) or MM Invoice Number (purchase by phone) before submitting this BMCRR form. Forms submitted without an order number or invoice number will be ignored.

Questions about 1979-2004 Mustangs:
1) What is your Web Order Number or Invoice Number?
2) What year is your car?
3) What model is your car? (Mustang, T-Bird, etc.)
4) What submodel is your car? (GT, GTS, LX, Cobra, etc.)
5) What year, model, and submodel did the front brake rotor come from?
6) What year, model, and submodel did the front brake caliper come from?
7) What year, model, and submodel did the rear brake rotor come from?
8) What year, model, and submodel did the rear brake caliper come from?
9) Is the proportioning valve stock or aftermarket?
10) If stock, what year, model, and submodel did it come from, and what is the part number stamped on its side?
11) If aftermarket, what is the manufacturer brand?
12) Is the brake system power assisted or manual?
13) If power, what year, model, and submodel did the vacuum booster or hydroboost come from?
14) If manual, what is the manufacturer and model number of the conversion kit?
15) What brand and compound are the front brake pads?
16) What brand and compound are the rear brake pads?
17) What is the brand and model of the front tires?
18) What is the front tire width?
19) What is the front wheel width?
20) What is the brand and model of the rear tires?
21) What is the rear tire width?
22) What is the rear wheel width?
23) Do you plan to make any changes in the near future, such as changing tire sizes, adding specific performance parts, etc.?

Tell us about how you drive your car.
It's very important that we understand how you use your car and what type of performance you want from it.

a) Is it only street driven?
b) Drag strip use only? (trailered to the strip)
c) Road course use only? (trailered to the track)
d) Street/strip? (Street-driven and also on the strip)
e) Street and autocross/road course?
f) Is there anything else you think we should know?
g) What is your name?
h) What is your email address?