[KC Chief]

I have a muffler bypass. You can keep your cat (it bolts right to it, so you have to unless you replace your cat), which will keep you emissions legal. It is significantly louder. Unless you combine it with other parts and a chip, such at Steve Wong, then you will see no hp increase. Most people think it's too loud after awhile. I like it, but I'm in the process of trying to tone it down a little.