2005 Chevy Colorado resonator box delete Mod 2013
delete the old smog box, gain some MPG! stock 21.5mpg (91 octane.) resonator box delete, 22.51mpg (89 octane) Colorado 3.5L straight 5 with larger off-road tires and 4:11 gearing.
Chevy colorado aero turbine muffler
2008 chevy colorado 3.7 with aero turbine at2525. truck has no cats and jumps up 4" pipe right past the muffler. ignore my ghetto wire hanger this was to get an idea of exit and will be changed a bit
05 Chevy Colorado i5 no muffler
Cat only no muffler
Straight Pipe 2004 GMC Canyon 3.5 i5
quite an interesting sound from a straight piped straight 5 engine :) don't complain about the construction, it was all thrown together in a bout 20 minutes :)