2011 Chevy Colorado LT - 5.3L V8 With New Exhaust
Magnaflow "50" Series muffler with 3" pipes from block back.
2009 V8 Colorado Aero Turbine In-cab
http://www.V8ChevyColorado.com -- check it out! My new muffler - Aero Turbine 3030XL, the sound from in the cab.
2009 V8 Colorado Aero Turbine exhaust, no rear cats
http://www.V8ChevyColorado.com -- check it out! 2009 Colorado. Aero Turbine 3030XL muffler, 3" muffler back, after secondary cats were removed. I think there's a difference. Revv'd to about 6k