GMPP Sport Muffler

[Gray 08]

I haven't found any videos of a truck driving with it. There's alot of idle and rev ones. You that have the sport muffler what's the sound going for a ride or road trip at highway speed.

[BlackZ71Silverado]

No cab drone....quiet at ihghway speeds.

[TimmyG]

Sounds great on the freeway! No drone hardly louder then stock and i dumped it in front of the rear wheel

 

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[Mikeb52r]

Mine sounds quiet with no drone at highway speeds untill you get on it and the wife hasn't said any differance when riding with me than with the stock. But I can tell the differance. I have even started to ride around more with my windows down to listen to it. Deffinatly worth the upgrade and I just replaced the muffler keeping all the stock pipes and stock exit.