Free Shipping On Orders Over $49. Details

Talk to a Mustang Expert
Every day 8:30AM EST - 11:00PM EST
Win 1 of 3 Exhaust Kits! Enter Daily!

Ford Performance Active Cat-Back Exhaust w/ GT350 Lower Valance (15-17 GT Premium)

Market Price $2,650.00 You Save 3% ($90.00)
Starting At

$2,560.00 (each)

FREE Shipping

  • Item 398089
  • MPN# M-5200-M8

Local Install Shops

Quoted installation from $125

View 3 Shops

near 19355 (change)

Sorry, please enter a valid US or CA postal code
We're sorry, zip can't be updated at this time.

Will this fit your Vehicle?

In Stock Ships same business day.
Ship to: Ashburn - 20149
Sorry, please enter a valid US or CA postal code
We're sorry, zip can't be updated at this time.
    Create a list
    Add to New List

    Saved - View your saved items

    We're sorry. We couldn't save this product at this time.

    Features & Details

    • Aggressive Loud Tone
    • Increased Torque and Horsepower Through Enhanced Exhaust Flow
    • Straight Through Free-Flowing Design
    • Connects to Stock Catalytic Converters
    • Durable 2.5 Mandrel Bent Stainless Steel Tubing
    • 4” Chrome Stainless Steel Tips
    • Comes with X Pipe Assembly
    • Easy and Direct Built-On Design
    • Compatible with All Mustang GT Premium Models (2015 to 2017)
    Superior Exhaust Upgrade. Unleash the beast in your GT Premium by installing the Ford Performance Active Cat Back Exhaust. It provides more efficient exhaust flow, compared to the stock system, resulting in higher torque and rear horsepower, as well as a deep aggressive sound that adds muscle to your GT Premium.

    Improved Power and Performance. Featuring a high-flow X pipe and a straight through, free-flowing design, the Ford Performance Active Cat Back Exhaust sets itself apart from other aftermarket exhaust upgrades. It delivers improved performance, and a unique tone on the track, street and drag strip.

    Quality Stainless Construction. The Ford Performance Active Cat Back Exhaust is made from extremely smooth 2.5” diameter mandrel bent T-304 stainless steel to boost exhaust flow. It comes with an X pipe and straight through mufflers to deliver a smooth and clear, yet deep sound. You will be excited to note that the design reuses the exhaust tips at the rear valance.

    Installation. This exhaust provides an easy direct bolt-on installation that does not require drilling, welding or other modifications. Anyone with light mechanical skills and simple hand tools can complete the process in just under 2 hours.

    Warranty. Ford Performance provides all their parts as is with no warranty.

    Application. The Ford Performance Active Cat Back Exhaust is designed to be compatible with all GT Premium Models (2015 to 2017).

    Fitment: 2015 2016 2017 Details

    CA Residents: Warning: California's Proposition 65

    What's in the Box
    • (1) X-Pipe
    • (1) Driver Side Muffler Assembly
    • (1) Passenger Side Muffler Assembly
    • (1) Driver Side Over Axle Pipe
    • (1) Passenger Side Over Axle Pipe
    • (4) Band Clamps
    Installation Info
    Tech Specs
    Will it fit my Mustang?

    You Might Also Like

    Customer Photos (1) Submit Your Photo

    View 1 Photo

    Questions & Answers (15)

    5 Top Rated Questions

    What are the HP gains from this exhaust compared to stock? Thanks

    • The Ford Performance Active Cat-Back Exhaust w/ GT350 Lower Valance will not really give you any more horsepower over the stock exhaust, maybe 2-3 more horses. Cat-back and axle-back exhaust would be more for sound and not performance. You will want to look at the long tube headers for performance.

    Helpful (2)

    Are these as loud as corsa sport or borla ataks?

    • From my understanding, this exhaust will be more comparable to the Corsa Sports in terms of how loud the exhaust is. In my opinion the Borla Atak is louder than the Corsa Sports.

    Helpful (1)

    Are there any plans for making a video of this exhaust system for how it sounds and is installed??

    • At this time there are no plans on adding a video for the Ford Performance Active Cat-Back Exhaust w/ GT350 Lower Valance (15-17 GT Premium). With that being said, we are constantly working to get product videos containing installation help and descriptions up for all the many items we do have in our inventory.

    Helpful (1)

    Design-wise how does this differ from the Borla Sport Quad Tipped system that also includes the GT350 lower valence? Would it sound similar if I bought this system and bought the Borla Sport mufflers so I could retain the active exhaust capabilities but have a louder tone of the sport mufflers?

    will this system fit my current Stainless Power headers? I understand i will need a 3" to 2 1/2" pipe adapter.

    • As long as you get thestep-down adapter pipe yes this will work. 

    Helpful (0)
    Post Your Question
    10 More Questions
    How much quieter is this than the corsa Xtreme cat back? 1 answer
    i have got ford borla sport cat back with gt 350 rear valance which is similar to this , is there is a way to buy just the key that closes and opens the valves 1 answer
    Hello, I already have Roush Rear Valance on my 2016 Mustang GT. Now I'm thinking about changing it out for this one. Will there be an issue if with the replacement? Thank you 1 answer
    Is this exhaust california legal? 1 answer
    I bought this and had it installed, the volume and tone is insane, it is definitely as loud as a GT350 stock exhaust. I know the GT350 is designed to always quiet start(valves closed), I was wondering if there's any information regarding this product having the same function? Because mine seems to be backwards, I am unable to start the vehicle in quiet mode as the valves automatically open when the car is started every time, making it loud and defeating the purpose of my purchase. If you guys don't know, who would I contact? Ford performance? Borla? 1 answer
    is it adjustable? what are those attachement in the second picture? 1 answer
    Is this system (mufflers and x pipe) not the same as the Ford Performance by Borla sport or touring systems? Do you know how it compares (volume, tone, etc)? 1 answer
    For people that already bought the Ford Performance cat-back exhaust w/gt350 valance, are they gonna sell a upgrade with just mufflers and the active exhaust switch, kinda sucks to force to buy the complete system all over again 1 answer
    is this just as loud as the actuall gt 350 1 answer
    Why is this called an ACTIVE exhaust? Is it user adjustable? 1 answer

    Customer Reviews (2) Write a Review

    Overall Rating 5

    out of 5 stars

    Installation Time:Full Day

    • Loudness / Volume 5 5
    • Exhaust Note 5 5
    • Fit & Finish 5 5
    • Bang For Your Buck 4.5 4.5

    • 5/5

      Installation Time: Full Day

      March 10, 2018

      Looks and sounds amazing

      Completely changes the look of the rear end of the car. Quiet mode is a bit louder than stock, but has a much deeper growl with zero drone at highway speeds. With the butterfly valve open, the volume is increased dramatically and an even deeper note without the rasp of other active systems I've heard. There is quite a bit of drone at highways speeds, but shutting the valve obviously solves the problem. It's a pricy system, and a dealership install was more than I anticipated, but the end result is fantastic. I enjoy having the option of changing the volume and tone on demand. As a side note, be careful of the placement of the electronics. Water caused the unit to malfunction. so it needed to be reinstalled in the trunk.


      Year: 2017 Submodel: GT

      Helpful (4)

    • 5/5

      Installation Time: Full Day

      November 03, 2017

      So aggresive sound!!

      If u want to be a little bit quiet, switch off. Want to be angry? Switch on!!! Not too hard to install, but it takes time about 5hours.


      Year: 2017 Submodel: GT

      Helpful (16)

    Related Mustang Categories