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Corsa Sport 3 in. Axle-Back Exhaust w/ Black Quad Tips (15-17 GT Premium Fastback; 18-20 GT Fastback w/o Active Exhaust)

Item 390913
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Market Price $1,357.13 You Save 12% ($156.14)
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      Product Information

      Features, Description, Reviews, Q&A, Specs & Installation


      • Corsa Sport Axle-Back
      • High Performance Sound without the Drone
      • Straight-Through Sport Mufflers Featuring Corsa's Patented RSC Technology
      • 304 Stainless Steel Construction
      • 3" Mandrel-Bent Tubing w/ Step-Down Flanges
      • Black Chromed, Twin 4" Pro-Series Tips
      • Cut & Clamp Design
      • Proudly Designed, Engineered and Manufactured in the USA
      • Fits 2015-2017 Premium Package GT Fastback Mustangs equipped with a Roush Rear Valance
      • Fits 2018-2020 GT Fastback Mustangs without Active Exhaust


      Sport Performance Sound. We know you love the raw, muscle car power and the tight, sports car handling of your Fastback GT Mustang, now if it only had an exhaust note to match. Give your GT the sound it deserves by installing a Corsa Performance Sport Axle-Back Exhaust. Corsa's Sport Axle-Back has been acoustically styled and tuned to give your 5.0L V8 powered S550 Mustang a robust sport performance sound under acceleration and a nice growl at idle, without any annoying drone while cruising. As an added bonus a Corsa Sport Axle-Back will also improve your Pony's exhaust flow for an increase of 5 RWHP and 4 RWTQ.

      RSC™ Technology. Corsa Performance engineers all their mufflers using their very own patented Reflective Sound Cancellation® Technology (RSC™). RSC™ Technology is designed to give your Mustang's exhaust an aggressive sound under acceleration and a drone-free experience while cruising.

      Quality Construction. Corsa Performance proudly manufactures their Axle-Back Exhaust systems right here in the good ole USA. This Corsa Axle-Back is mandrel-bent from 3" diameter, premium grade, 304 stainless steel tubing for excellent exhaust flow and enduring corrosion resistance. The system features two high flow, straight-through sport mufflers that end with black chromed twin 4" Pro-Series tips. Step down flanges are included, so that this 3" Corsa Axle-Back can be installed with the factory 2.5" exhaust.

      Cut & Clamp Installation. The installation of this Corsa Axle-Back Exhaust System will require cutting and removing the factory muffler assemblies and clamping the new muffler assemblies in place. Clamps and installation instructions are provided.

      Application. This Corsa Sport Axle-Back Exhaust System with Black Chromed Quad Tips is designed to fit 2015-2017 Fastback GT Mustangs equipped with the factory Premium Chassis Package (Trim Levels: 400A/401A) and the 2018-2020 Fastback GT Mustangs that is not equipped with the Active Valve Exhaust System.

      Application Note. The 2015-2017 Model Years will require the use of the Roush Rear Valance 421894 or 421919 for proper installation (valance sold separately). Does not fit convertible models.

      Fitment: 2015 2016 2017 2018 2019 2020 Details

      MPN# 14334BLK

      CA Residents: WARNING: Cancer and Reproductive Harm -


      Customer Reviews (4)

      Write a Review

      Ratings Summary

      5 out of 5 overall rating from 4 customers

      Installation Time: Less than 1 Hour

      • February 13, 2020

        5 2018 GT - Scottec Installation Time: Less than 1 Hour

        All I can say is WOW!!

        All I can say is WOW! Sounds amazing! So many compliments! Wow for the price too! I guess you get what you pay for with Corsa.

        Helpful (0)
      • January 24, 2018

        5 2015 GT - TristanM

        best axleback on market

        for an axleback, this makes the car sound great, pair this with x pipe and headers and your car will scream. Even today i got someone tell me it sounds so mean and i only revved to 4k

        Helpful (13)
      • September 27, 2017

        5 2015 GT - Arabia4mustang Installation Time: Less than 1 Hour

        Should u get it ?

        It is really good foe whom wants to have loud and chill sound on their car I really love it I would recommend this if your looking for the best sound !

        Helpful (11)
      • June 04, 2016

        5 2015 GT - Dgonzo Installation Time: Less than 1 Hour


        Was excited when I installed these. Ford quoted me 200 dollars to install but I went to a muffler shop and they charged me 100 bucks to install. Went with the black tips and they sound amazing!!!!! Very aggressive when you get on them but not annoying

        Helpful (11)

      Questions & Answers (7 answers)

      5 Top Rated Questions

      Is this exhaust compatible with the Anderson Composites carbon fiber Type-AR diffuser? I currently have a SR X-pipe, want to make sure it all fits before checking out.

      Will this fit well with the borla resonator delete x-pipe? And what's the sound different between this product and the Roush quad tip axelback?

      If I have an x pipe on my 2018 mustang GT and get this axle back will it go from the mufflers all the way to the x pipe replacing all stock piping making it a full catback or will there still b stock piping in there?

      Will it fit 2016 mustang gt convertible? I know steeda doesnt fit because the convertible has subframe undernease.

      • The Corsa Sport 3 in. Axle-back Exhaust will not fit the convertible model Mustangs due to the positioning of the subframe.

      Helpful (0)

      Will this set up pair with the heartthrob hpipe ?

      • Yes, this exhaust will pair with the HeartthrobH-pipe quite nicely and will fit without an issue. 

      Helpful (0)
      Post Your Question
      2 More Questions
      can i install this on an H-Pipe instead of an X-pipe? 1 answer
      Does this fit 2018 Mustang GT PP? 1 answer

      Installation & What's in the Box

      Installation Info

      What's in the Box

      • (2) Twin Exhaust Tips
      • (1) Right Muffler Assembly
      • (1) Left Muffler Assembly
      • (1) Right Over Axle Intermediate Pipe
      • (1) Left Over Axle Intermediate Pipe
      • (2) Step Down Flanges - for use with OE Size Exhaust
      • Clamps
      • Installation Hardware

      Tech Specs

      Axle-Back Exhaust Specifications
      Piping Material:304 Stainless SteelTip Material :Black Chromed 304 Stainless Steel
      Piping Size:3" - 2.5" Step Downs IncludedTip Size:4" Twin
      Muffler Type:Straight-throughFitment:2015-2017 GT Fastback

      Will It Fit My Mustang

      • GT - 15, 16, 17, 18, 19, 20

      Compatible with Premium Package Fastback GT Mustangs equipped with required 15-17 Roush Rear Valance only.

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