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.

/DRIVE
We've posted the parts list and link to the video of MM's Mustang in /DRIVE Tuner car Shootout

MRT Cat-back Exhaust, 1999-2004 Mustang GT, Bullitt, Mach 1
Actual product may differ from photo.

$799.99

  • Item # 92B20

Select Option(s):

Muffler Series

 
 

 

MRT and MM collaborated in designing this cat-back exhaust to fit with the MM Panhard Bar and Torque-arm!

Of course, it also fits with stock upper control arms. Direct-fit, bolt-in installation is DIY-friendly.

Fits 1999-2004 Mustang GT, Bullitt, and Mach 1 with 4.6L engine.

  • MRT mufflers give your Mustang a muscular sound quality.
  • Low drone!
  • Polished stainless-steel tips enhance your Mustang's appearance.
  • High-quality 409 stainless steel muffler
  • Constructed from corrosion-resistant T304 stainless steel, the best for exhaust systems.
  • All component parts (mufflers, hangers, clamps, bolts) are stainless steel.
  • CNC mandrel tube-bending technology for precise fit
  • Unique proprietary manufacturing and quality control process produces the industry's highest-quality and best-fitting exhaust.
  • Backed by industry-leading Limited Lifetime Warranty.

MRT offers 2 muffler choices: MaxFlow and ChamberFlow.

MaxFlow
  • Straight-through, sound-absorbing muffler design produces a deep performance sound. Not as loud as the ChamberFlow muffler.
  • At wide-open throttle, the sound level increases to an aggressive performance tone.
  • Loudness rating: 6 on a scale of 1 to 10, with 1 being stock and 10 being near open-pipes loud.
  • Drone rating: 2 on a scale of 1 to 10, with 1 being stock and 10 being intolerable.
ChamberFlow
  • Chambered muffler produces a deep, full sound that matches the tough American muscle car sound of yesteryear.
  • Straight-through, chambered muffler design allows maximum exhaust flow for maximum performance. Louder than the MaxFlow muffler.
  • Loudness rating: 8 on a scale of 1 to 10, with 1 being stock and 10 being near open-pipes loud.
  • Drone rating: 2 on a scale of 1 to 10, with 1 being stock and 10 being intolerable.
Fits
  • 1999-2004 Mustang GT
  • 2001 Bullitt
  • 2004 Mach 1

Does NOT fit Mustang with V6 engine

We're working on FAQs for this product. If you have a question, please use our Contact Us page to email your question. We'll answer your question by return email, and also consider it for possible addition to this FAQ section.

  • MRT designed this system for simple DIY installation.
  • Installation time is about 1 hour.
  • Installation requires only common hand tools.
  • All necessary hardware included.