Description
The Mishimoto MMEXH-MUS4-15 is a cat-back exhaust engineered specifically for the Ford Mustang EcoBoost, pairing twin oval mufflers with larger-diameter, mandrel-bent piping to boost exhaust volume and tone without introducing cabin drone. Built from full 304 stainless steel and TIG-welded throughout, this system channels spent gases through a 3-inch to 2.5-inch exhaust split before exiting through dual 4.5-inch double-wall, polished tips.
Mishimoto designed this Mustang EcoBoost exhaust with a modular center section that mates to the stock downpipe or most aftermarket downpipes, and an optional 3-inch downpipe-to-exhaust adapter is available for owners running the Mishimoto Mustang EcoBoost Downpipe. The mandrel-bent, minimal-bend piping is intended to optimize flow through the turbocharged 2.3L EcoBoost engine, while the specially selected oval mufflers deliver a more aggressive turbo and exhaust tone under acceleration and boost without adding unwanted resonance. Because the system installs with no additional adapters or brackets, it works equally well behind manual or automatic transmission Mustangs, and it comes with the Mishimoto Lifetime Warranty.
Vehicle Applications
This Mishimoto exhaust is built for the S-550 chassis Ford Mustang. Coverage includes the Mustang EcoBoost and EcoBoost Premium, GT, and GT Premium from 2015-2021, along with the Mustang GT V8 from 2019-2021. It also fits the Mustang Base from 2015-2016, the V6 from 2015-2017, and the V8 from 2017-2018. Additional coverage extends to the Mustang GT 50 Years Limited Edition (2015), the Shelby GT350 and GT350R (2015-2020), the Shelby GT500 (2020-2021), the Bullitt (2019-2020), and the Mach 1 (2021). Note that this exhaust will only mate to the stock downpipe or an aftermarket downpipe with a 2.25-inch outlet, as Mishimoto has not verified fitment with all aftermarket full 3-inch downpipes, and it will not fit a convertible model unless the underbody brace is removed prior to installation.
Features
- Direct fit for the 2015-2021 Ford Mustang EcoBoost
- Specially-selected oval mufflers for a subtle, yet aggressive turbo and exhaust tone under acceleration and boost with no added drone
- Designed with minimal bends for optimal airflow
- Dual 4.5-in double wall, polished tips
- Full 304 stainless steel mandrel-bent construction
- Modular center section with optional 3-in downpipe to exhaust adapter for easy mating to the Mishimoto Mustang EcoBoost Downpipe
- Mates with stock, or most aftermarket downpipes
- Fits both manual and automatic transmissions with no additional adapters or brackets
- TIG-welded to perfection
- 3-in to 2.5-in exhaust split helps maintain proper exhaust velocity
- Backed by the Mishimoto Lifetime Warranty
Specifications
- Finish: Polished
- Exhaust Tip Diameter: 4.5 in
- Exhaust Tip Finish: Matte
- Exhaust Tip Material: 304 Stainless Steel
- Exhaust Tip Shape: Round
- Exhaust Tip Color: Polished
- Exhaust Tip Connection: Slip-Fit
- Exhaust Tip Wall: Double-Wall
- Exhaust Tip Cut: Angle
- Pipe Material: 304 Stainless Steel
- Grade Type: Performance
- Clamping Type: Flat Band
- Clamps Included: Yes
- Hangers Included: Yes
- Muffler Finish: Polished
- Exit Style: Rear
- Chassis Code: S-550
- Engine Code: 2.3L EcoBoost
Frequently Asked Questions
What vehicles fit the Mishimoto MMEXH-MUS4-15 exhaust?
This exhaust fits the Ford Mustang EcoBoost and EcoBoost Premium, GT, and GT Premium from 2015-2021, the GT V8 from 2019-2021, the Base from 2015-2016, the V6 from 2015-2017, the V8 from 2017-2018, the GT 50 Years Limited Edition (2015), the Shelby GT350 and GT350R (2015-2020), the Shelby GT500 (2020-2021), the Bullitt (2019-2020), and the Mach 1 (2021).
What is included with the Mishimoto MMEXH-MUS4-15 exhaust kit?
The kit includes one stainless steel front pipe with a slip joint connection, one stainless steel Y pipe with slip joint connections, two stainless steel mufflers with single 4.0-inch double wall polished tips, one 3.0-inch slip joint clamp, two 2.25-inch slip joint clamps, and the Mishimoto Lifetime Warranty.
Will this exhaust fit a convertible Mustang?
This exhaust will not fit a convertible model unless the underbody brace is removed prior to installation.
What downpipes is this exhaust compatible with?
This exhaust will only mate to the stock downpipe or an aftermarket downpipe with a 2.25-inch outlet. Mishimoto has not verified fitment with all aftermarket full 3-inch downpipes.
What material is this exhaust made from?
The exhaust is constructed from full 304 stainless steel with mandrel-bent piping and is TIG-welded.
Does this exhaust work with both manual and automatic transmission Mustangs?
Yes, it fits both manual and automatic transmission vehicles with no additional adapters or brackets.
âš WARNING (California Proposition 65): This product can expose you to chemicals known to the State of California to cause cancer and/or birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
