Win A 2018 RTR Spec 3 Mustang! Enter Now!
Talk to a Mustang Expert
1-888-332-7930
Mon - Sun, 8:30 AM EST - 11:00 PM EST

Free Shipping On Orders Over $49. Details

Stainless Works Performance Downpipe - Catted (15-17 EcoBoost w/ 3 in. SW Cat-Back)

Market Price $645.00 You Save 5% ($32.25)
Our Price

$612.75

FREE Shipping
  • Item 387450
  • MPN# M15EDPCATSW

In Stock Ships same business day. Choose options to add to cart

Features & Details

  • Stainless Works Catted Performance Down Pipe
  • Increases Rear Wheel Horsepower and Torque
  • High Flow Catalytic Converter
  • 304 Stainless Steel Construction
  • Free Flowing 3" Diameter Mandrel-Bent Tubing
  • More Aggressive Sound Compared to Stock
  • Designed and Manufactured in the USA
  • Fits 2015-2017 EcoBoost Mustangs w/ 3" Stainless Works Cat-Back Exhaust
More Horsepower And Torque. Add even more horsepower and torque to the rear wheels of your turbocharged EcoBoost Mustang by installing a Stainless Works 3" Performance Catted Down Pipe. A Stainless Works Catted Down Pipe features a high flow race catalytic converter to increase the overall performance of your S550 Mustang.

More Aggressive Sound. Stainless Works Performance Down Pipe not only helps increase power and performance, but it also adds a much more aggressive exhaust note to your S550 EcoBoost Mustang, when compared to the stock down pipe.

Stainless Steel Construction. Manufactured in the USA from full 3" diameter T304 stainless steel tubing for strength and superior corrosion resistance, this Stainless Works Catted Down Pipe is mandrel bent for superior airflow - so there are no kinks to rob you of power.

Recommended Upgrade. To realize the full power potential that this Down Pipe has to offer, AmericanMuscle recommends a Bama custom tune with a Mustang Handheld Tuner to reprogram the vehicles computer (ECU) for proper operation.

Application. This Stainless Works Full 3" Performance Catted Down Pipe is specifically designed to fit the 2015-2017 EcoBoost Mustangs and will require the use of a Stainless Works 3" Cat-Back Exhaust in order to be installed properly (see options above).

Fitment: 2015 2016 2017 Details

What's in the Box
  • (1) Catted Down Pipe
Installation Info
Tech Specs
Down Pipe Specifications
Piping Material: Stainless Steel Piping Size: Full 3"
Catalytic Converter: "Yes" Type Cat-Back Required: 3" Stainless Works Cat-Back 
- Fitment: 2015-2017 EcoBoost
Will it fit my Mustang?
  • EcoBoost - 15, 16, 17

Customer Photos

You Might Also Like

Q & A

No questions about this product yet.

Ask the First Question

More Products You Might Like

Customer Reviews (1) Write a Review

Overall Rating 5.0

out of 5 stars

Installation Time:Afternoon

  • Loudness / Volume 5 5
  • Exhaust Note 5 5
  • Fit & Finish 5 5
  • Bang For Your Buck 5 5



  • 5/5

    Installation Time: Afternoon

    May 29, 2015

    great sound

    I purchased the stainless work downpipe with the stainless works exhaust. Had to be welded together. I have not dyno'd my car with the added exhaust. The sound is deep and not too loud where it becomes an annoyance. I got great performance out of it too at the track. My temps drop 4-5 degrees. Won't go wrong with this addition to an ecoboost

    mustangirl008

    Year: 2015 Submodel: Ecoboost florida

    Helpful (0)

Related Mustang Categories