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Old 07-07-2002, 09:21 PM   #1
HondaH8er
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Location: www.rs25.com Beaverton, OR
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Question Turbo exhaust question:

Well, I've decided to go through with building my own turbo kit (with help from people who know what the hell do do!). Here's my thread, incase anyone else has anything useful to say:
http://forums.nasioc.com/forums/show...hreadid=204943
and:
http://www.rs25.com/Forums/showthrea...&threadid=3364
Anyways, I'm going to be getting subachads up and down pipes for the turbo, but what about the rest of the exhaust? Obviously, the pipe with the cats between the header and the midpipe won't work any more, since the uppipe will be connected to the header. So what do I do after the downpipe? Can the cat pipe be cut down at a muffler shop and have the flanges moved to work, or would the stock WRX cat pipe work, or do I just need to get something custom made? Or could the WRX cat and midpipe go back to my Stomung without mods? Or am I now in the market for a whole new exhaust? And if so, will I be able to drive it from home to the muffler shop with the only exhaust on the car being the downpipe? Doesn't sound like a good idea, but how else would I get the exhaust made? And I'd like to at least keep the Stomung that I have on the car now, and this is a budget project, so I'm looking for the best option at the lowest price. I was just thinking about this, and I don't know what to do, so I'm turning to you guys (again ) for help. Thanks in advance!
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Old 07-07-2002, 10:26 PM   #2
seven881
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I'm at the same point with the exhaust too. If the pipes on your car now are less than 3", it looks like you're going to need a new exhaust. The EJ25 will move a lot more air with a turbo, and 2.5 - 3" piping is what'll take. I'm actually buying an old exhaust from a WRX for sizing and emissions testing. Then have my brother in-law custom make an exhaust with no cats. Also, the WRX exhaust needs some minor mods like moving hangers. You can save the muffler probably with a little modification.
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Old 07-08-2002, 01:09 AM   #3
HondaH8er
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Got a reply from subachad on www.rs25.com , where I asked the same question. He suggested just getting a good high-flow cat, like the Random Technologies one from Summit, and driving down to the muffler shop with the cat pipe off, and having them make that piece custom. Guess the stock cat is 1.75" Yeah, that's too small. Maybe I'll just have them do the whole piece from the downpipe to the stomung, since I still have the stock midpipe, too.
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