Hey guys/gals just thought i would share with you my exhaust story .2011 5.0 first used hush power wasn't for me to glass pack like,second american thunder classic mustang sound like my first 5.0 1986 good sound but still to quite (these cars are much more insulated)So i then about 2 months ago added the boss h-pipe with side exhaust (open)sounds like a race car but when cruzin still quiet sounds great.very easy install 

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