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High Flow Cat without Air Tube - Anyone make one?

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Old 05-03-12, 09:21 PM
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Question High Flow Cat without Air Tube - Anyone make one?

I don't need to pass emissions, just need a cat for visual purposes and I don't have a smog pump. Does anyone make a high flow mid pipe without the air tube? Thanks.
Old 05-03-12, 09:27 PM
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Just run a dummy tube to it
Old 05-03-12, 09:43 PM
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You could purchase a metallic substrate cat, then just cut a midpipe and use bands or have it welded into place. They won't do much for emissions, but if you only have a visual check they are technically a cat.
Old 05-03-12, 10:35 PM
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Just buy a resonated mid pipe. They won't know the difference as long as it looks like a cat.
Old 05-04-12, 07:30 AM
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You could have one custom built without the tube, or just buy one, cut the tube off and have it welded shut.

Dale
Old 05-04-12, 10:05 AM
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Will a high flow cat burn up or anything without air supplied to it?
Old 05-04-12, 11:57 AM
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Originally Posted by Mahjik
You could purchase a metallic substrate cat, then just cut a midpipe and use bands or have it welded into place. They won't do much for emissions, but if you only have a visual check they are technically a cat.
This is the route I was considering if there is not off the shelf solution. It's cheap and clean, just a bit of extra work.

Jason, I have a resonated MP. Between the smell and overall appearance of the muffler... I can't imagine it would fool anyone.
Old 05-04-12, 12:37 PM
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I bought one off RX7store.net and the tube for the air pump was plugged off, I had to have the pipe removed off the old cat and welded onto the highflow at a machine shop.
Old 05-04-12, 12:40 PM
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Originally Posted by mrb63083
Will a high flow cat burn up or anything without air supplied to it?
No, the airpump is for emissions. I guess it could help cool things off, but its not necessary.
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