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Old 10-13-2016, 07:07 AM   #1
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Ebay Headers.. OBX Header Manifold

Just ordered me a pair of the OBX Header Manifold and there AMAZING!! Perfect quality welds are all sold and built for a perfect fit. way better then the OEM ones. O2 sensors fit right in. the link it here and half the price as name brand ones.

OBX Header Manfold Fits 99 00 01 02 03 04 Porsche 986 2 5L 2 7L 3 2L Boxster | eBay
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Old 10-13-2016, 03:28 PM   #2
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I'd be interested in hearing if you had problems passing a smog test as their ad says they are not DOT, SAE or CARB approved (You dont' have to worry about CARB as that's a Calif. thing) but I wonder about the DOT non certification. Not sure if the SAE (Society of Automotive Engineers) non certification affects a smog test.
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Old 10-13-2016, 04:08 PM   #3
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Yep, have the same, and they're nice. Nice enough for me!

You'll need to trim some thing and might have to re-drill a bolt hole, but for the price, it's pretty good!

It won't be certified for anything!
You remove the first catalytic converters, so you'll need cheaters (90 angled O2 sensor spacers), and you might not pass an emission test!
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Old 10-13-2016, 04:53 PM   #4
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They sure look nice

Any Dyno info on the real gains ??
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Old 10-14-2016, 02:34 AM   #5
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No noticeable gains with just the headers.
A better sound, lighter, but don't expect high gains.
The primaries are too big for a 2.7 or 2.5.
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Old 10-14-2016, 03:35 AM   #6
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I have a set as well. Bolted in no mod except a trans line was close so we heat wrapped it . Other manufacturers put a small indent in the pipe but OBX doesn`t. I did`nt like the supplied gaskets. I went with another brand from a jobber. Sounds great. No cel`s either.
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Old 10-14-2016, 08:59 AM   #7
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Originally Posted by Xpit77 View Post
I did`nt like the supplied gaskets. I went with another brand from a jobber. Sounds great. No cel`s either.
When I fitted mine I used the layered gaskets only for them to fail and blow out after a month of running. Fitted the proper single shim type gasket and all good since.
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Old 10-14-2016, 09:26 AM   #8
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I used OEM gaskets too.
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