Installed the Roush axleback exhaust on my GT, love the sound! Ive gotten nothing but compliments on them. They sound even better in person. Installation was .\rbr\rbrMy 2015 Ford Mustang GT with a Stainless Works Cat-Back H-Pipe and some Plasti Dipped wheels & grille. You cant tell from the video because it was cold .\rbr\rbrFlickr Page: Facebook page: Google+ page: .\rbr\rbr 2014 Mustang V6 3.7 with Roush mufflers installed. This is a sound comparison review of the exhaust sound before and after.