02-26-2012, 04:32 AM | #24 | |
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3 coats of Glasurit 2K-NFZ-Decklack 18-B 900 Scharwz 2pack enamel. |
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02-28-2012, 04:49 PM | #25 |
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I changed one of my 1M today with the N55 mid pipe.
It s a well worth investment. Throttle response is better. When you are off and on the throttle the pickup is little faster. Also you can feel it revs more free in higher rpm. If it has more hp or NM i can t feel. |
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02-29-2012, 05:25 AM | #27 |
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Hey guys, just to confirm, was it part number: 18307599743 that y'all ordered? And did you have to replace any of the gaskets or bolts? Just trying to make sure I get everything I need.
Thanks
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02-29-2012, 05:50 AM | #28 |
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18307599743 i ordered the same number.
You need no extra bolts. I also did not order extra gaskets on the down pipe side. But you have to be careful then. Maybe it s better to order some new ones. |
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02-29-2012, 06:09 AM | #29 |
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Cool, thanks. And if you don't mind me asking... about how much did you pay? I need to make sure I pack enough €
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02-29-2012, 11:45 AM | #32 | |
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The picture that Dackelone posted in this thread shows no secondary cats. Am I to assume that RealOEM's diagram is incorrect? I suppose I could order through my dealer and inspect upon arrival to verify. One other question: with the elimination of the secondary cats are exhaust emissions affected? My home state here in the USA requires an annual safety and emissions inspection and I want to make sure nothing changes so the vehicle will no longer pass their testing. |
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02-29-2012, 11:03 PM | #33 | |
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When mine arrived at the dealer, I had them open the box to confirm, as their product diagram also shows the mid cats in the pipes. |
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03-01-2012, 10:46 AM | #35 |
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I like cats, but prefer dogs ... Anyway, Mr Zuzu, we're still waiting for your dyno's ! According to the Milltek site, mid-pipes without cats (or dogs) should release around 11hp extra. The muffler itself (from Milltek) is only a 5hp gain, and costs 4 times more...
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03-01-2012, 03:46 PM | #36 |
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Anyone know if the N55 midpipes will throw codes? Though the mod sounds very enticing, I'm concerned that the loss of the 2ndary cats may throw a hidden code (which my service center can then use to give me trouble when it comes to performing warranty service).
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03-01-2012, 04:10 PM | #37 | |
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03-01-2012, 05:05 PM | #38 | |
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03-01-2012, 05:10 PM | #39 | |
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03-01-2012, 08:41 PM | #40 | |
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03-01-2012, 09:08 PM | #41 |
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Order the part of a 2011 N55 135i..
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03-02-2012, 09:44 PM | #42 | |
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Dyno chart shows runs with "M" button OFF at 242.5Kw, then with "M" button activated on 258.1Kw ATW Stock runs with OEM 1M mid pipe with "M" button activated was 246Kw ATW. "M" button activated makes a 16Kw difference on Dyno charts.. Last edited by Zuzu; 03-02-2012 at 09:52 PM.. |
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