2015+ Mustang EcoBoost MRT Extreme Non-catted Downpipe

2015+ Mustang EcoBoost MRT Extreme Downpipe 98U903
MRT 304 Stainless Downpipe: 2015+ Mustang Ecoboost #98U903
MRT Part# 98U903 Loudness: 6 Drone: 2 Performance: 5

Application: 2015+ Mustang Ecoboost Coupe
Tune: Maybe Required
Time to Install:60 Minutes
Retail Price: $719.99
Your Price: $599.99
Sale Price: $539.99

Availability: Usually Ships in 1 to 2 Business Days

Product Details Technical Specs Installation Instructions

When all you care about is the biggest possible sound from your sixth-gen Mustang, our Extreme Series non-catted downpipe is ready to unleash it. The MRT Mustang EcoBoost MRT EcoFlow Downpipe without cats has a loud, deep muscle car sound that takes an aggressive turn whenever you smash the throttle. Though it's not approved for use on public roads, it will produce the melody you want at the track while fitting your budget.

A Mustang EcoBoost Downpipe kit consists of the turbo outlet pipe and the intermediate pipe along with installation hardware. By removing the restrictions as exhaust gases exit the turbo, you'll crank up the decibels every time you start the engine - and especially when you hammer the gas on a long straightaway. This added efficiency from reduced blockages also helps the engine run better. We have more than 35 years of OE and automotive engineering experience that we use to deliver unmatched tone and performance from every system.

Upgrade Sound with the Right Downpipe

The 2015-23 Mustang EcoFlow Downpipe without cats has just enough exhaust presence with elevated sound to Get Noticed, plenty of opportunities to Feel the Performance and is packaged in a design without excessive drone. If you're generally satisfied with the amount of horsepower from your EcoBoost engine but are desperate for an old-school roar, this downpipe is the easiest way to bring it out. A non-catted downpipe is also a good choice for those who want to customize their exhaust while sticking to a strict budget. Watch the video below to hear it howl!

Like all MRT exhaust products, our replacement Mustang non-catted downpipes are handcrafted in corrosion-resistant three-inch T304 stainless steel. We also use mandrel-bent tubing and a straight-through muffler to increase exhaust flow. This system is engineered for the best sound to match your vehicle and provides a small-to-moderate performance boost. Our aftermarket downpipe for the 2015-2023 Mustang EcoBoost can be installed in 60 minutes or less using standard automotive hand tools. Note a tune may be needed to produce the best performance.

Affordable Mustang Exhaust Systems

A Gen 6 Mustang non-catted downpipe is one of many systems available from MRT. If you want more of a performance boost on the track and aren't as concerned about being loud, we offer the 2015-23 Mustang EcoBoost Street Race Downpipe with 200-cell or 400-cell race cats to give your ride some more giddy-up. We also offer the same Extreme sound in axle back and cat back systems for an upgrade you can take to the streets - or that you can pair with the downpipe to leave the competition in the dust.

Call us at 734-455-5807 for advice from experts who share your passion for great Mustang sound. MRT is here to help people get more from their cars. All our exhaust systems are still designed, engineered and manufactured in the U.S. with a limited lifetime warranty for materials and workmanship.

NOTE: This product is designed for off-road race use only.

Application: 2015+ Mustang EcoBoost Coupe

Hear the Difference

  • How does it sound? The MRT EcoFlow Downpipe: Non-Catted has a balanced, deep muscle sound.
  • Is there a drone or resonance? The drone is noticeable but tolerable.
  • What if I step on it? Wide-open throttle increases exhaust loudness and tone to an aggressive performance sound.

Are you located close to Plymouth, Michigan and need your MRT aftermarket exhaust installed? Call MRT at 734-455-5807 to make an appointment today!

98U903: 2015+ Mustang MRT EcoFlow Downpipe: Non-Catted Sound Clip
  • DIY installation for the backyard mechanic
  • T304 stainless steel construction for the best corrosion resistance
  • Engineered, designed and manufactured in the U.S.

You might also like:
2015+ Mustang EcoBoost MRT Street Race Axle Back 2015+ Mustang MRT EcoBoost Sport Touring Axle Back 2015-23 Mustang MRT Original No Drill Hood Struts
Sale Price: $539.99
Your Price w/ Options: $764.99
Our Price w/ Options: $125.99
2015 - 2024 Mustang EcoBoost Street Race Axle Back 91U903 2015 - 2024 Mustang EcoBoost MRT Sport Touring Axle Back 91U902 2015-23 Mustang MRT Hood Struts