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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N55 Turbo Engine Tuning and Exhaust Modifications - 335i Tuning > Straight piped N55



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      03-16-2015, 10:50 PM   #1
E92only
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Straight piped N55

I've been curious to see how this setup sounds so I did it to my car and it's LOUD. No one on the forums seems to have a completely straight piped N55 so if anyone in SoCal (Glendale/Burbank) wants to hear it shoot me a pm.
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      03-16-2015, 11:56 PM   #2
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I had mine straight piped, took it off in less than a week. The sounds not too great imo and way too loud. Catless with stock Dp is best sounding to me except for catless BMW PE. Just my opinion though.
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      03-17-2015, 05:14 AM   #3
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How's the drone?
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      03-17-2015, 11:24 AM   #4
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Quote:
Originally Posted by E92only View Post
I've been curious to see how this setup sounds so I did it to my car and it's LOUD. No one on the forums seems to have a completely straight piped N55 so if anyone in SoCal (Glendale/Burbank) wants to hear it shoot me a pm.
Depends on what you are looking for. It will be very loud, some people love it others hate it.
I personally would not do it on a daily driver.
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      03-17-2015, 09:44 PM   #5
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Mine goes catless downpipe, resonated midpipes, muffle delete.
It's loud on cold start and when going WOT but otherwise not bad.
I love it.
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      03-17-2015, 10:06 PM   #6
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Catless dp with stock exhaust is perfect for me. I wouldn't mind having a Remus race though
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      03-17-2015, 10:11 PM   #7
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I get compliments on my e92 xdrive I just have to VRSF catless DP
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      03-18-2015, 09:19 PM   #8
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The drone is terrible, not gonna lie lol. It's been a few days now and I'm used to it. It sounds like my friend's R35 GTR and he's got an iPE full exhaust on it. Nugget do you live in LA?
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      03-18-2015, 09:38 PM   #9
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Forgot to mention that everyone who's heard my car absolutely loves the sound
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      03-19-2015, 08:43 AM   #10
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If you are tired of the drone but you still want it to be loud you should consider vibrant resonators. Post up a vid of the sound? I just got my DPs recently and I love the sound but wish it was a tad louder sometimes.

http://www.e90post.com/forums/showthread.php?t=506271
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      03-20-2015, 07:06 PM   #11
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Quote:
Originally Posted by Nugget View Post
Mine goes catless downpipe, resonated midpipes, muffle delete.
It's loud on cold start and when going WOT but otherwise not bad.
I love it.
I only have the PPK with the BMWPE on my N55 and ya, cold start sounds like a fucking truck, when its at normal idle, it's nice and ya, WOT it sounds awesome. I wonder how much different a catless DP will make it sound...how much power do they add?
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      03-20-2015, 07:46 PM   #12
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Post a video please
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      03-20-2015, 08:22 PM   #13
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I'm trying to capture the true sound, but these damn iPhones suck at it. Any suggestions?
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      03-20-2015, 10:29 PM   #14
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Borrow a goPro from a friend?
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      03-21-2015, 09:34 AM   #15
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Has anyone tried the Ar design catless downpipe with resonator? I wonder if it would be the perfect combo with secondary cats and bmw PE.

http://www.ardesign.info/store/selec...-n55-2011.html
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      03-21-2015, 06:20 PM   #16
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Quote:
Originally Posted by E92only View Post
I've been curious to see how this setup sounds so I did it to my car and it's LOUD. No one on the forums seems to have a completely straight piped N55 so if anyone in SoCal (Glendale/Burbank) wants to hear it shoot me a pm.
I used to have a muffler delete and catless downpipe but cold starts were way too loud lol. I just have a downpipe now but I posted a video if that's what you were curious about. I live in Glendale btw.
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      03-21-2015, 08:20 PM   #17
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How old are you guys? Serious question. I have Downpipe with Vanguard exhaust and love it. I'm actually thinking about cutting the resonators out
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      03-30-2015, 07:40 AM   #18
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Catless downpipe straight shot to Corsa mufflers here : ) best setup ever
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      06-05-2020, 12:03 PM   #19
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Bringing this back alive with an update. I went back to stock for a few years, but I'm back baby I recently cut my mufflers and did the PE mod. I only cut half of each muffler and replaced the cat/perforated pipes w straight pipes. Next week I will be going catless with my AR 4" dps. I also bought vibrant 1792 resonators, but I'm holding off on the instal to see how it sounds first. I will post clips next week when i'm catless/fbo!
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      06-05-2020, 04:25 PM   #20
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Best sound in my biased opinion is catless dp with catback vanguard exhaust lol. It was the perfect amount of loud. I put my cat converter back on because state ref inspection so I'm keeping it that way from now on.
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      06-05-2020, 07:47 PM   #21
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Yeah I've got ca smog check but I'm going to ask around to see who wants to make some $$
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      06-05-2020, 08:05 PM   #22
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Quote:
Originally Posted by E92only View Post
Yeah I've got ca smog check but I'm going to ask around to see who wants to make some $$
Just make sure you completely remove the tune. My car got flagged because of it.
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