Only bolt on stuff would be installing a cat back system. I'm running a Dynomax on mine. Don't think it improved the mileage at all but the stainless tips look good!

Joe

 

i jst got my exhaust done on my 3.8 and hate it. its to loud because i dint put mufflers on lol. they ran 2 pipe all the way back from cats. i dont want my car loud anymore. do yoiu know a muffler that will make my car quiet again i just want the looks of the duals
Josh

 

Put the Dynomax Turbos on, like the ones that come with the cat back system. A little bit louder than stock, nice rumble.

Joe