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BMW 3-Series (E90 E92) Forum
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Custom Catless Manifold + BMS Downpip Fix Install
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11-22-2012, 04:08 AM | #23 | |
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I'm a bit curious to see how this sounds vs. If you had an equal length design. Please keep us updated
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11-22-2012, 03:05 PM | #24 |
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11-22-2012, 03:15 PM | #25 | |
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What does the bms dp fix exactly do for us n52 owners?
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11-22-2012, 03:38 PM | #26 |
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its acts like an O2 sim/bung. U need to code it to do that... Not sure how.
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11-22-2012, 04:15 PM | #27 | |
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Hmm.. I get what you mean now, is this meant to use only with catless headers/dp?
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11-22-2012, 10:58 PM | #28 |
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11-23-2012, 07:30 AM | #29 | |
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Alright I get it now! Thanks for the claification
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11-23-2012, 09:19 AM | #33 |
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Nice.
Need some nice WOT vids too :-) Looks like there isn't much increase in cabin noise (which is a good thing). Keep it up :-) |
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11-23-2012, 09:41 AM | #34 |
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long tube headers are the type that usually make a lot of noise... his are custom catless single-tube headers. Big difference but still makes the necessary horsepower without all the unwanted noise.
I prefer the loudness myself... :/ @mapleridge, if you wanted to meet up tomorrow, drop me a PM about where u want to meet. |
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11-23-2012, 03:54 PM | #35 | ||
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11-24-2012, 01:20 AM | #36 |
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We need the WOT! Plus some outside neutral revs!
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11-24-2012, 11:59 PM | #37 |
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Ok....I'm not a cinematographer but here is an idle video and another one where I punched it. It is pretty evident that these things aren't loud at all. They change the sound ever so slightly.
*edited to add neutral revs. Last edited by mapleridge; 11-25-2012 at 12:24 AM.. |
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11-25-2012, 10:41 PM | #38 | |
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Koni special active red, eibach pro-kit springs, Remus exhaust, stage 3 intake manifold,Stage 2 AA tune, BMW Short shift kit. Silicon intake pipe. M3 control arms front, M3 rear. ECS trailing arm with whiteline bushings. Purple powerflex subframe bushings. Yellow power flex upper shock mounts. Single mass flywheel OE weight.
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11-26-2012, 12:40 AM | #40 |
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Looks like you found your noise level tolerance, I wonder how it would've sounded with the DA pipes. What pipes are you going to run with later?
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11-26-2012, 01:00 AM | #41 |
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I actually dyno'd with the stock exhaust and the Detail addict pipes did have gains in tq and hp over stock. It was negligible though. I figure deleting secondaries on the stock system would get me more gains than the DA setup. For now, I am enjoying the quiet. Once I dyno, these headers and if the power is there I will delete second cats too and if it gets too loud I will throw more resonators on. I like the single side outlet for now. If anything I would just change the oem outlets to fit my m3 rep. Swapping between bumpers is cool for now. A friend at the shop showed me how to uninstall the rear bumper in a flash so it's like switching underwear now.
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11-26-2012, 01:11 AM | #42 | |
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11-26-2012, 06:33 PM | #43 |
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Just finished installing my headers. Took me about 5 hours. Got to head to the exhaust shop tomorrow and get them connected to the mid pipes. Right now they are wide open and loud as hell haha!
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11-26-2012, 08:06 PM | #44 |
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