Exhaust - Subaru WRX Forum
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post #1 of 5 Old 11-17-2011, 04:57 PM Thread Starter
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The previous owner of my car installed some sort of exhaust. Im not too sure what all he did to it, but i know he switched out the muffler. But that aside, assuming he didnt change out the uppipe downpipe or midpipe which do you replace first. The uppipe ive read is the most poorly designed followed by the downpipe so does that mean uppipe first then down? Also, Catless exhaust is illegal here in NC so i was wondering what some good options would be with cats.
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post #2 of 5 Old 11-17-2011, 05:35 PM
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Catless is also illegal here in PA but that didnt stop me from going catless. I just saved my old stock DP so when Emission time comes around Ill just swap it out. Im gonna save up for a high flow catted DP though. Only got the catless because I got a deal on it. My advice is just save and get a nice catted DP, or if you want to kill 2 birds just get a turbo back exhaust. Just do your research and you'll be fine.
Good luck man.

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post #3 of 5 Old 11-18-2011, 05:59 AM
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Originally Posted by Babyshoes View Post
But that aside, assuming he didnt change out the uppipe downpipe or midpipe which do you replace first.
Yes, the UP first. Then engine management and then a turbo-back.

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post #4 of 5 Old 11-19-2011, 10:45 PM
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Cobb's catted downpipe is arguably one of the best on the market. Slightly pricy, but reasonable for what you get.

It's nice to see you've already done some research

07 WRX
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post #5 of 5 Old 11-20-2011, 10:50 AM
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Cobbs is the only one that I know of that comes with a bung already in it (in the DP). Been running it for a few yeas now, the only issue I have with the full system (TBE) is my canister is showing some age/rust. I might be taking it off this winter to paint it black, still kicking that idea around.

"2007 WRX- PPG'd, 20G- Tim Bailey tuned
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