Increase the performance in your 2012-2013 Mustang Boss 302 with a Flowmaster American Thunder cat back exhaust system.Flowmaster proudly introduces our new 817553 American Thunder Cat-back exhaust, engineered specifically for the 2012-2013 Boss 302 Mustang. A full 3.00” diameter throughout, this all-409S stainless steel true Cat-back system features our patented Scavenger X pipe, and incorporates flanges to retain the OE side-exit pipes. The custom-engineered 60 Series Delta Flow mufflers deliver an aggressive, powerful exterior sound and a moderate interior tone with very little resonance. The 4.00” diameter polished tips provide the finishing touch to the back of the car. The bolt-on exhaust comes with all necessary installation hardware and even includes side-pipe spacer plates with larger .75” holes- a popular modification in itself. The system provides a substantial performance gain, and with the detailed instructions is easily installed at home or by a professional. Like all Flowmaster stainless steel systems, our Limited Lifetime Warranty means you’ll never need to buy another exhaust for your Mustang Boss 302.
* * * NOTE: This Flowmaster Cat-Back exhaust kit is intended to be used with the stock mid pipe.* * *
Flowmaster - The Exhaust Technology Company Flowmaster operates the only exhaust Research & Design facilities of its kind in the world, centered around the SuperFlow SF-7100 engine dynamometer complete with E.C.A. (engine cycle analysis) equipment and also SuperFlow chassis dyno's.
Through use of these dyno's, Flowmaster's engineering staff can track the complete engine cycle in millionths of a second and can obtain exact technical data of each degree of cam rotation, from induction to the tip of the exhaust system, while also showing the power numbers that really matter, the power numbers "to the ground."
Flowmaster also utilizes Spectrum Analyzers to fine "tune" the sound of each of the eleven different series of mufflers that Flowmaster currently offers, both for peak performance and just the right sound levels and tones. Flowmaster's dedication to quality is what makes them the exhaust industry leader for Latemodel Mustangs and SVT Lightnings!
Products by Vehicle
Email Me When It's Back In Stock!
Email Me When It Arrives!
Upload a Picture
Upload your own picture of the Mustang Flowmaster American Thunder Boss Exhaust System (12-13)
Please make sure to hold your device horizontally (like a camera) rather than vertical (like a phone).
By uploading an image, you agree to give LateModelRestoration.com® permission to use it in future advertisements and promotions.
Testimonial: Coyote swap parts a step above the rest.
Late Model has made choosing the right parts for my coyote swap fox body much easier. With a dedicated section for this type of build and constantly updated with the latest parts it was a clear choice for me. They even did they're own swap with instructional videos. Thanks Late model!
This is Vivian. This is my 5th mustang in 4 years. I had never owned one until the 2011 came out with the new 5.0, and then I my addiction began. I started with a 2011 CS, then a 2012 Stage 2 Roush, t...