Thread: Roush exhaust
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Old 05-20-2013, 12:53 AM   #4
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Join Date: Feb 2011
Vehicle: 2013 v6 Performance Package
Location: California
Posts: 747

Originally Posted by Sonic Mustang View Post
I've heard/read this dozens and dozens on times?

What in the heck makes people think exhaust systems break-in?
Over time the resin buildup from burnt fuel will catch on the inside of the exhaust and give it a deeper rumble; I experienced it on my sixxer as well as my dads gt

2013 v6 Performance Package
Airraid CAI 91 Tune
Roush Axlebacks
ST Coilovers
Exterior Mods
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