09-12-2020, 07:02 AM | #1 |
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REMUS EC-Approved Axelback + REMUS mid-pipe = happy OPF sensor / no CEL? - 2021 M2C
So I'm looking for a 100% problem-free setup.
My car is an M2C 6SPEED EU car with OPF, MY2021. - I do not want any CEL or similar. - I do not want to remove the OPF. - I do not want a tune. - TUV approved would be optimal. + I do want to get rid of the ugly back box. + I do want a little bit more sound (I like the S55 sound). I'm thinking about the REMUS EC-Approved (TUV approved) axelback system and together with the REMUS midpipe (keeps OPF:s removes mid-muffler) should match what I'm looking for. Does anyone run this combo on an EU OPF car? That is, the REMUS EC-appoved axelback (NOT the race version) pair:ed up with the REMUS midpipe. Any issues? CEL? Anything else? |
09-12-2020, 01:03 PM | #3 |
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Why do you want EC/TUV approved? If you remove the resonator and stick on the Remus mid-pipe the exhaust will no longer be EC/TUV approved. The only way to really remain EC approved is basically not to increase power and not to increase sound. That is, an axle-back only system. You may get an increase in sound (with valves open of course), but the exhausts are EC approved because they basically adhere to OEM requirements and EU/TUV regulation.
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09-12-2020, 01:44 PM | #4 | ||
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09-12-2020, 02:19 PM | #5 | |||
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09-12-2020, 02:31 PM | #6 | |
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09-12-2020, 02:33 PM | #7 | ||
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09-12-2020, 02:37 PM | #8 | |
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https://f87.bimmerpost.com/forums/sh...5&postcount=13 From MR. He seems like a legit source. |
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09-12-2020, 02:49 PM | #9 | ||
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09-12-2020, 03:16 PM | #10 |
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I was in the same boat as the OP - I decided against the Remus as I had actually called them and asked the question if anyone had got the CEL light with their racing exhaust and they were open and honest and admitted a very small handful of customers had the CEL light appear. In the end I went for the Milltek Race OPF back.
I haven't had the system fitted yet - when the exhaust system got delivered Covid hit and I just haven't had the opportunity to get it installed. If the CEL does appear I will get the light reset and if it keeps going off then what I will do is replace the Race centre silencer with the EC approved one . I am hoping this doesn't happen as the Race system sound is much better than the EC approved one. |
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09-12-2020, 03:22 PM | #11 | |
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09-12-2020, 03:56 PM | #12 |
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That's the key question really , for the people that have had the CEL light go off , was it frequent or just now and again? I will be keeping my standard exhaust system anyway so worse comes to worst I can return the car back to standard.
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09-13-2020, 10:01 AM | #13 |
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So frustrating this whole OPF thing. And I'm not even removing them. I guess Milltek EL OPF back system is an option as well. Haven't herd much about it tough. No idea if it has CEL problems or not. :/
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09-13-2020, 11:54 AM | #14 | |
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https://f87.bimmerpost.com/forums/sh....php?t=1617973 |
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09-14-2020, 12:23 AM | #15 | |
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09-14-2020, 03:22 AM | #16 |
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So I contacted Motech Performance here in the UK and asked about the CEL for Joe Achilles with his Remus Race exhaust. They stated it was nothing to do with the exhaust and was a problem with the car. Apparently they install 5-7 of these exhausts each month and this was a one-off issue... hmmm. I also found a post or two about people with the Sport Remus exhaust who also had this problem. Makes you wonder if it's just crappy OPF sensors.
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09-14-2020, 03:31 AM | #17 | |
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"Many thanks for your email. With regards your enquiry we have not had any reports of CEL's illuminating due to installing any of our GPF/OPF back systems on the M2 Competition. As such there should be no reason to get a tune to eliminate the CEL." So that sounds promising as well. Hmm, are people just having bad OPF sensors? |
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09-14-2020, 03:56 AM | #18 | |
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09-14-2020, 11:21 AM | #20 | |
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09-14-2020, 12:27 PM | #21 | |
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Ok, cool.
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11-06-2020, 10:04 AM | #22 |
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