Free Shipping On Orders Over $49. Details

Talk to a Mustang Enthusiast
M-F 8:30A-11P, Sat-Sun 8:30A-9P
Win $5,000 For Your Mustang! Enter Daily

Corsa Xtreme Cat-Back Exhaust w/ Polished Tips (18-20 GT Fastback w/ Active Exhaust)

Item 404904
Call a Mustang Enthusiast at 1-877-887-1105
M-F 8:30A-11P, Sat-Sun 8:30A-9P
Market Price $2,371.87 You Save 12% ($272.88)
Our Price

$2,098.99 (kit)

FREE Shipping

Will this fit your Vehicle?

Change Vehicle Help?
Update or Change 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, Video & Details

    • Cat-Back Exhaust
    • Provide Power and Performance to Your Mustang
    • Stainless Steel Construction
    • Three-Inch Piping
    • Four-Inch Polished Tips
    • Valved System
    • Easy Installation
    • Lifetime Limited Warranty
    • Fits 2018-2020 Ford Mustang GT Fastback with Active Exhaust

    Review & Installation Video

    Review & Install Video

    Exhaustively Powerful Modification. When you’re racing with your 2018-2020 Ford Mustang GT Fastback, making an overhaul to your Pony’s exhaust can markedly improve the power of your vehicle. So equip your ride with the Corsa Xtreme Cat-Back Exhaust with Polished Tips. The quality construction and heavy-duty quality will bring you years of improved performance.

    Built to Last. This system is crafted from durable, 3-inch stainless steel piping. The quality of the piping has been further improved by the mandrel-bending process that keeps the pipe’s width intact, with no pressure points in the pipe created whatsoever.

    Polished Tips. This kit is finished off with twin, 4-inch tips coming from each muffler, giving a bright amount of shine and attractiveness to keep your Mustang looking as great as it’s going to sound.

    Installation. You will need moderate mechanical expertise and about 4 hours with power tools and hand tools. Either a car lift or jack stands are required as well. Please have this installed professionally if you lack the materials or expertise.

    Limited Lifetime Warranty. This axle-back kit is protected by a limited lifetime warranty, defending against material and manufacturer’s defects. Please see Corsa’s full warranty for more details.

    Application. This Corsa Sport Axle Back Exhaust with Polished Tips is designed to fit 2018-2020 Ford Mustang GT Fastback models with Active Exhaust. Please ensure correct model before purchase.

    Fitment: 2018 2019 2020 Details

    MPN# 21001

    CA Residents: WARNING: Cancer and Reproductive Harm -

    What's in the Box
    • (2) Mufflers
    • (1) Double X-Pipe
    • (1) Driver Side Tip Assembly
    • (1) Passenger Side Tip Assembly
    • (2) Non-Valve Tip Assembly
    • (2) Double X-Pipe Front Adapter
    • Mounting Hardware
    Installation Info
    Will it fit my Mustang?

      Customer Photos (7) Submit Your Photo

      View All 7 Photos

        Questions & Answers (5)

        5 Top Rated Questions

        If I bought this the corsa long tube headers to match will that be a complete setup or will I have to get a midpipe? Also is a tune required?

        • As long as the Corsa headers include the adapter pipes, it will work with this exhaust system.

        Helpful (0)

        Could this replace the Roush active exhaust on a 2016 Roush stage 3?

        • No, this is designed specifically for the 18-19 Mustang so we cannot confirm fitment for any other year Mustang.

        Helpful (0)

        Instead of an X-pipe can i use an H-pipe instead?, if so which H-pipe can i use?

        • You can use the H-pipe in place of the X-pipe. Some modifications may be required. Item #404879( Item #388785(

        Helpful (0)

        Can I use these exhaust on 2018 GT Convertible? Thank you

        • Unfortunately this exhaust will not fit the 2018-2019 Convertibles models due to the brace.

        Helpful (0)

        my 2018 mustang gt does not have the active exhaust, is it able to fit the exhaust and get an active exhaust?

        • Upgrading your 2018 GT to active exhaust will require numerous additional parts through your Ford dealer, but can be done. We recommend contacting a Ford dealer to see what parts are needed and for any pcm updates required.

        Helpful (0)
        Post Your Question

          Customer Reviews (6) Write a Review

          Overall Rating 5

          out of 5 stars

          Installation Time:Afternoon

          Installation Cost:$100-$250

          • Loudness / Volume 5 5
          • Exhaust Note 5 5
          • Fit & Finish 4.833333 4.8
          • Bang For Your Buck 4.833333 4.8

          • 5/5

            Installation Time: Afternoon

            July 22, 2019

            Best exhaust ever!

            This is the best one I ever had, price is equal to quality. Easy installation, fun times downshifting :D


            Year: 2015 Submodel: GT

            Helpful (0)

          • 5/5

            Installation Time: Afternoon

            April 29, 2019

            Love it!!

            I love the sound. I wish I had gotten sooner. Having an active exhaust option makes car quieter than Factory exhaust in quite mode and in track mode it’s full on beast mode. No drone at all in car even in track mode.


            Year: 2019 Submodel: GT

            Helpful (1)

          • 5/5

            Installation Time: Shop Install

            Installation Cost: $100-$250

            December 07, 2018


            Easy to install. If you have OCD like me and like to center your exhaust perfectly, you might have to wiggle the rear hangers a little bit. Cold start is brutally loud so quiet start is recommended. Revved it in a parking garage and broke a few ear drums so definitely do not recommend that. NO DRONE, so it is pretty docile on the highway in the cabin but best believe it is not the same story for people behind you.


            Year: 2019 Submodel: GT

            Helpful (8)

          • 5/5

            Installation Time: Afternoon

            November 24, 2018

            2018 Corsa active cat back

            Installed the Corsa Active cat back on my 2018 Mustang GT PPL2 and the fit finish and quality are all excellent. Instructions are good but pictures could be clearer for the transfer of actuators and spring from OEM mufflers to the new. Operation is just like OEM but sound is way better than stock. Quiet is fairly quiet if you stay out of the throttle, sport sounds like OEM race and Race is ear splitting joy that only Corsa mufflers bring to Coyote motors.


            Year: 2018 Submodel: GT

            Helpful (8)

          • 5/5

            Installation Time: Afternoon

            May 14, 2018

            Jaw Dropping Excellence

            The YouTube videos of the Corsa don't do it justice. It's an absolutely amazing system that sounds as good as it looks. Being able to retain the active exhaust with an aftermarket system was a major selling point of this catback for me; being able to slap it in quiet mode when getting home after midnight is such a luxury. From my first 48 hours of experience with this system, I would say buy this if you are on the fence. Yes, it's a pricey system but the money is well worth the fit and finish of it. Before I forget, let's talk volume and tone. Quiet mode still does exactly what it's called, and is (in my opinion without a decibel meter) just as quiet as the stock active system. Normal mode has enough volume on it to put a smile on your face when cruising around. I'd compare it to sport mode on factory active. Sport mode is good, but at that point I just dial it to Track mode because the sound is that much better. On cold start it makes a roar that has made me giggle before my morning commute. Once the car's warmed up, however, the idle is pretty mild. Rev it lightly to 1k or 1.5k rpm and you get beautiful burbles and pops reminiscent of older muscle. Rev it higher, and you get great tone with plenty of volume that makes you think "Should I be wearing earplugs while doing this in my garage?" Bottom line: Buy this exhaust. Worth every penny.


            Year: 2018 Submodel: GT

            Helpful (15)

          • 5/5

            Installation Time: Less than 1 Hour

            May 05, 2018

            Amazing system!!

            Corsa has won my heart and soul.... The 2018 stock active exhaust is hard to beat but Corsa makes it look easy. With the stock exhaust x pipe I found myself wanting more and always throwing it in track. With this exhaust, you can stay in normal and still have an awesome sounding exhaust. All modes sound great!! The other huge plus is that there is no drone. The stock A.E. drones in sport and track. (especially with an xpipe). The other active exhausts do not touch the corsa in the sound quality. I will say that I like the look of the magnaflows better. One downside is the fitment. The tips didn't go on straight and its hard to get the left and right even.


            Year: 2018 Submodel: GT

            Helpful (12)

          Related Mustang Categories