For 2001-04 Roush Mustang owners, finding a suitable replacement for their original exhaust has become increasingly challenging as we are now 20 years past the production of the 2001-2004 Roush Mustang. Market research reveals limited aftermarket options that truly preserve the iconic look, sound, and performance that Roush enthusiasts expect.
Built with durability, performance, and versatility in mind, this system not only replicates the signature Roush side-exit style but also offers tunable sound profiles to suit every driving preference. Whether you're looking to restore your Roush Mustang to its former glory or elevate it to new heights, MRT now offers an exhaust solution that finally meets the needs of this passionate community.
Take full control of your 2001-2004 Roush Mustang’s sound with the MRT Tunable Side Exit Exhaust System. Specifically engineered for Stage 1, 2, and 3 models, this system delivers both exceptional performance and unrivaled flexibility. Whether you prefer the refined rumble of the Sport Touring profile or the bold, aggressive tone of the Street Race profile, the MRT Tunable exhaust lets you customize your sound with interchangeable inserts—tailoring your driving experience to match your mood or environment.
How does MRT make this exhaust sound tunable? Well, with an MRT engineered tunable muffler constructed of 409 Stainless Steel and designed to use simple to install inserts that generate 2 sound exhaust modes. This MRT exhaust kit is shipped with the Sport Touring sound and includes inserts that are simple to install so you can swap to a Street race sound that is inspired by Roush Performance's racing history. (Note: the street race sound is approximately 25% louder than the sport touring sound.)
Crafted from 2.5" high-quality T304 stainless steel, this system offers unmatched durability and a signature side exit design inspired by Roush’s legendary style. Each tube has CNC mandrel bent tubes for optimum exhaust gas flow and performance. Team MRT executed quality fabrication of T304 Stainless Steel polished Tips that are welded-on for increased durability and proper alignment with direct fitment to the Roush side skirts.
If you're looking to gain a deeper tone and more power, combine this exhaust with an MRT
catted or
non-catted H-pipe. The sound is classic American muscle car that is sure get noticed.
Hear the Difference - How does it sound? You pick via a tunable muffler - the Sport Touring profile offers a deep, refined muscle car rumble, or Street Race for a bold, aggressive, race-inspired tone
- Is there drone or resonance? The drone is noticeable but tolerable.
- What if I step on it? Wide-open throttle increases exhaust loudness to an aggressive performance sound.
Are you located close to Plymouth, MI and need your MRT aftermarket exhaust installed? Call MRT at 734-455-5807 to make an appointment today!
