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Mishimoto Downpipe High-Flow Catted Stainless Steel 3″ Mustang EcoBoost 2015-2022

(1 customer review)


PD Notes: Unless you want the added sound, aftermarket downpipes, in my opinion, aren’t necessary on most daily driver stock turbo cars on pump gas. I would consider upgrading If you are looking to run higher octane (e30, meth, e85, etc.) on the factory turbocharger or if you are looking to swap to a larger aftermarket unit.


Mishimoto 3″ Stainless Steel High-Flow Catted Downpipe for 2015, 2016, 2017, 2018, 2019, 2020, 2021, and 2022 EcoBoost Mustangs.

Enjoy significant power and torque upgrades on your 2015-2022 EcoBoost Mustang, while still maintaining the proper emissions to remain street legal by ordering this Mishimoto 3″ Stainless Steel High-Flow Catted Downpipe. This downpipe uses a 2-piece mandrel-bent tubing design that has been constructed from a 304 stainless steel material, for a durable and reliable performance boost.

Features and Benefits:
– 2-Piece Design
– Made Using Mandrel-Bent Stainless Steel Tubing
– Comes with Metallic Core High-Flow Catalytic Converter for Safer Emissions
– 3″ Tube Diameter
– Creates Superior Level of Uninterrupted Exhaust Flow
– Significantly Increases Power & Torque Performance
– Produces Extremely Aggressive Turbo & Exhaust Tone
– Adaptable to Many Exhaust Configurations with 3″-2-1/4″ Adapter
– Fits with Manual & Automatic Transmissions
– Includes All Necessary Clamps & Flanges

This downpipe from Mishimoto features a 2-piece design crafted using stainless steel tubing that is mandrel-bent to mount within your S550. The tubing has a 3″ diameter and will help maximize the uninterrupted exhaust flow. It will also significantly improve your Mustang’s overall power and torque performance. As you hit the accelerator, the downpipe will help your EcoBoost get that ideal,o and exhaust tone aggressive turbo.

This downpipe is incredibly adaptable to a wide-range of exhaust configurations, thanks in part due to its 3″-2-1/4″ adapter. This adapter can also be omitted, so the downpipe will use its 3″ V-band outlet to help mate up to other cat-back exhausts and other mid-pipe combinations. This also helps it fit on your Mustang whether you have an automatic or manual transmission.

Mishimoto’s MMDP-MUS4-15CAT downpipe also features a catalytic converter that has a 200 cell spun metallic core within its interior. This catalytic converter is what allows the downpipe to be street legal, so you can enjoy the overall exhaust flow performance improvements whether you’re on the track or cruising down the street. This downpipe will also include all of the necessary clamps and flanges and will mate perfectly to your original turbo gasket

California Residents: Proposition 65 Warning

In stock

Original price was: $665.95.Current price is: $600.95.

Weight 20.8 lbs
Dimensions 34.5 × 15.2 × 20.8 in
Catback Connection

2.25" (OEM Connection), 3" (Customization Required)

1 review for Mishimoto Downpipe High-Flow Catted Stainless Steel 3″ Mustang EcoBoost 2015-2022

  1. Lee Chee Siang (verified owner)

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