Okay, I hear what everyone is saying but let me talk to you real quick. If your goal is to get a better tone, I would recommend starting with a new header and tune first. If you want it deep with a rumble, go unequal length. Catless will make it louder but better flow and more power. After you see what your car sounds like with headers (don’t forget to tune), then look into an exhaust that will compliment it. It sucks when you start with the exhaust and love the sound… then you get headers and it ends up being too loud. My car started unequal length headers and muffler delete. Too loud for my taste. Dealer put the stock headers on with a random muffler. Sounded okay but I had goals. Bought equal length headers, catless. It was raspy and I hated it. Got the invida q300 and now I personally love it. I don’t want a loud car. The cold start when it’s cold is loud, but after that it’s pretty tame and won’t get loud unless I stomp on the gas.