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02-02-2017, 08:41 PM | #1 | |
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Fabspeed O2 bung spacers with inline-mini CATs
an interesting idea from Fabspeed.
They have a universal O2 bung c/w a mini CAT to fool the O2 sensor. If i'm understanding this correctly it would let you run straight pipes or resonators and the mini CATs would look after the O2s ....anyone heard about these??? Quote:
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02-07-2017, 12:08 PM | #3 |
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Definitely interesting. I assume they could be threaded into existing 02 bungs as well?
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02-07-2017, 01:12 PM | #4 |
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Yes, I would think so, if there's room
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02-12-2017, 03:54 AM | #5 |
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Very interesting!
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02-12-2017, 04:17 AM | #6 |
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Ordered before they're made illegal. I won't install them until July at the earliest.
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02-28-2017, 09:24 AM | #7 |
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So I was thinking of ordering these for my new headers that are currently on order. Can anyone tell me if I should buy the 90 or 45 degree?
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02-28-2017, 09:32 AM | #8 |
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It depends on the orientation of the header bungs and clearance.
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02-28-2017, 12:43 PM | #9 | |
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Quote:
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02-28-2017, 12:50 PM | #10 |
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Is this so you can run cat-less? interesting..
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02-28-2017, 01:14 PM | #11 | |
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Quote:
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02-28-2017, 02:05 PM | #12 |
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I passed this onto a buddy of mine that knows way more than I do about BMW things. He basically said cats need heat to work, and that usually comes from exhaust flow. It might help enough to correct the signal a little bit but he's skeptical of them being a complete fix. I assume he's stating this because there's no flow at all in these. Any real world testing to back this up.
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02-28-2017, 02:27 PM | #13 | |
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With the small size of these, I'm not sure if it would take much to heat them up convected through the pipe itself. I would think someone like Fabspeed would have tested before going to market with them.
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03-13-2017, 08:15 PM | #14 |
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I bought a set of o2 simulators from ******, haven't installed yet but am hopeful considering these were the first sims to work for the n55 crowd
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03-07-2018, 12:38 PM | #16 |
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03-07-2018, 12:46 PM | #17 |
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I'm currently test a generic set, however, I damaged one pre and post cat sensor so waiting for a replacements to arrive. Will post a full write up once complete.
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03-07-2018, 12:53 PM | #18 |
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This look very interesting to run straight S pipes and headers without cats, but I wonder if the Z will pass smog check in California x-x
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03-09-2018, 06:03 AM | #19 |
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If anyone wants a pair I have a set I’ll sell at discounted price. PM me...
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