2015+ Mustang MRT EcoFlow Downpipe: HiFlow cats (400 cell)

2015+ Mustang EcoBoost Performance Downpipe with HiFlow Catalyst 98U904
MRT 304 Stainless Downpipe: 2015+ Mustang Ecoboost #98U904
MRT Part# 98U904 Loudness: 4.5 Drone: 2 Performance: 8.5

Application: 2015 thru 2021 Mustang Ecoboost.
Tune: None required
Time to Install: 60 Minutes

*** Currently not available due to catalyst costs. Call MRT for options ***
Retail Price: $791.98
Your Price: $659.99

Availability: Usually Ships in 1 to 2 Business Days

Product Details Technical Specs Installation Instructions
The Mustang EcoBoost MRT EcoFlow Downpipe with HiFlow Cats (400 cell) has a loud, deep muscle car sound and is handcrafted in corrosion-resistant 3" T304 Stainless Steel. MRT engineered this system with the best sound to match your Mustang. It provides increased performance from the increased exhaust flow. The EcoFlow Downpipe with HiFlow Cats has just enough exhaust presence with elevated sound to Get Noticed, plenty of opportunities to Feel the Performance, and packaged in a design without an excessive drone.

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

Application: 2015 thru 2021 Mustang Ecoboost

*** Due to increased catalyst costs, this system is currently unavailable at this price. If you are interested in the system, please call us for final pricing information. We will begin manufacturing again as soon as we can. ****

Hear the Difference
  • How does it sound? The MRT EcoFlow DownPipe: HiFlow Cats (400 cell) #98U904 has a balanced, deep muscle sound.
  • Is there 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, MI, and need your MRT aftermarket exhaust installed? Call MRT at 734-455-5807 to make an appointment today!

98U904: 2015+ Mustang MRT EcoFlow Downpipe: HiFlow Cat Sound Clip
  • DIY installation for the backyard mechanic
  • T304 Stainless Steel for the best corrosion resistance
  • Engineered, designed and manufactured in the USA

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