QUOTE(joeTM @ Sep 3 2008, 10:28 PM)
Hey All!
I just found this forum and hope someone here can answer some questions. First some insight into my ride... I picked up a 09 lancer gt (2.0), and have added a short-ram intake and an axle back exhaust system. (Both from road-race). My next step is grabbing the exhaust header from road-race. I'm using road-race parts simply because they are offered at the dealership, and figured they wouldn't give me a problem if I came in for warranty work.
Anyway - after installing the axle-back, I took a closer look at my piping. I noticed 2 areas of the exhaust that are wider than the pipe, but don't resemble the catalytic converter at all. They just look like thicker piping added in. I'm thinking of adding a custom cat-back, and am not sure if I can/should take these pieces out, or leave them in.
I'm fairly new to tuning 4-bangers. I used to own an 81 Camaro, so adding power was as easy as adding 2 3" pipes straight from the exhaust headers.
btw - I can keep up to my buddies Acura rsx type s, and am hoping to pass him after doing the piping/header job. Any thoughts would be greatly appreciated.
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Those 2 areas you are talking about after the catalytic converter are called resonators. They help smooth out the exhaust flow and dull out the droning sound you hear on some cheaper aftermarket exhausts.
You can cut them out, but your exhaust tone will become louder and have a droning sound inside the cabin. If you choose to remove them, you will definitely need a muffler, otherwise it will be very annoying to the ears to drive your car. The stock exhaust on our cars was designed to be very, very, quiet... perfect for hunting wabbits.
Huh huh huh huh!