07 Chevy Colorado 3.7 I5 No Muffler

07 3.7 Inline 5. Y-piped with no muffler and 24"x3" tips.

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05 Chevy Colorado i5 no muffler
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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 :)

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

2009 Chevrolet Colorado 3.7L I5 0-160 Acceleration
Crew cab 4x4 z71 suspension. Mod's include, K&N Cold Air intake, MBRP cat-back Exhaust, Hypertech Max Energy power programmer