I want to give my 05 Colorado a 'tough' sound, not a 'ricer' sound... does anyone know what kind of exhaust i should pick up? I am currently interested in a magnaflow, but unsure how it would sound.

 

Pick a muffler that is hanging off of an LS-6

Magnaflow is a good choice, so is Flowmaster - stick to 3chamber though, don't be tempted by the 2chamber models.

Magnaflow has a feature on their website where you can find your car and listen to a sound clip of it. I took a quick look and they have the Colorado on there.

 

Great I'll be checking the website out, and listening to a few.. I really don't know what the difference is between 2 and 3 chamber though.