Reviewed By Lee R (El Paso, TX) —11/6/2017 8:34 PM
Single in/out basically went in place of a stock Silverado muffler... Easy peasy, sounds mean at full throttle now
Reviewed By Joshua M (TOLEDO, OH) Reviewed for a 2009 Pontiac G8 —9/21/2017 7:39 PM
Installed these on my Pontiac G8. The exterior sound is a nice rumble. not too loud, not too quiet.The interior noise "drone" is rather noticable but not too terrible and has a little vibration to it. Again, not terrible. Nothing a little sound dampener cant fix.