swapping factory exhausts
while you are at it replace the fronts with hi flow cats, then sell your 4 cats to the scrap yard and you will probably make money on the whole deal, hi flows are about $60-70 depending on where you get them and which ones, then a scrap yard should give you about $50 per cat so spend $140 on cats and sell your stock ones for $200, make $60
Your plan is investing a lot of money for a slightly louder sound. Remove your OEM rear cats if anything. I did with my '04, which will not throw a code. Front cats & true dual Bullets blow away a Flowmaster also, just in case you want it a lot louder.
http://www.youtube.com/watch?v=Vi-L12mt5E4
http://www.youtube.com/watch?v=Vi-L12mt5E4




