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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 > Bomiz Exhaust Vs. Turner Exhaust



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      09-30-2023, 09:00 PM   #1
BlueWaterMetallic
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Bomiz Exhaust Vs. Turner Exhaust

Hi all, I'm about to pull the trigger on buying a valved exhaust for my n55 and I've only seen two real competitors Bomiz(1900$) and Turner(1500$). I'd love to hear anybody's thoughts if you've had either or if there's a brand I'm missing.

Thanks, RS
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      10-05-2023, 08:16 PM   #2
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just bought the turner for my n55e ill lyk when i put it on this weekend.
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      10-05-2023, 10:21 PM   #3
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Thank you
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      10-07-2023, 10:10 PM   #4
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Quote:
Originally Posted by BlueWaterMetallic View Post
Thank you
So I installed it. It was a very easy install, I had an atm race before and I couldn’t get it on do to the center top bolt on the downpipe. It took me about 2 hours to install and it fit perfectly without having to adjust the clamps or anything. Exhaust sounds great, not too loud but gives you a nice meaty growl. Although it’s very tough to tell if the valves are open or not. I checked that they were operating and lubed them with wd40. I haven’t driven it enough to say whether they really make a difference although the pops do sound more pronounced when open. And it’s also hard to tell from inside the car. I will find out on cold start if they r working properly I guess. Very worth imo. Only thing I would add is prolly buy new downpipe bolts and nuts. The nuts provided are weird locknuts that I didn’t use and they don’t provide the bolts. Also get a small connector for splicing the wires (not sure what they r called my grandfather wired it up)
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      10-07-2023, 10:22 PM   #5
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Thx gonna prob buy it monday
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      10-07-2023, 10:25 PM   #6
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Only other thing I would note that this is not a race exhaust level sound when open. Which iMo is a good thing for n55. Lets the sound and notes be heard but tame enough to where u arnt anoyyed.
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      10-07-2023, 10:38 PM   #7
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Cool, I was looking for something quieter
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      10-08-2023, 01:25 PM   #8
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After another cold start not inside a garage the valves are noticable on cold start. Stays quiet prolly the same level as the stock but has a deeper tone.
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      10-12-2023, 01:48 PM   #9
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Bought the exhaust gonna install it Monday and will try to post sound clips on here when it's done
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      10-17-2023, 06:14 PM   #10
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Exhaust is on and it isn’t too loud and there is a slight rattle at the moment(figure that’s install so I’ll look later). However, very worth. It has a deep and throaty tone that I really appreciate.
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      10-18-2023, 01:29 PM   #11
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https://youtube.com/shorts/Fr2h_OECdCs?si=9sb-dSur-qnBHUFt

Read title, have a before clip, but if you’re looking for an exhaust I figure you already know what your engine sounds like.
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      10-25-2023, 09:02 PM   #12
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Quote:
Originally Posted by BlueWaterMetallic View Post
https://youtube.com/shorts/Fr2h_OECdCs?si=9sb-dSur-qnBHUFt

Read title, have a before clip, but if you’re looking for an exhaust I figure you already know what your engine sounds like.
the rattle is prolly the valves.
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      10-26-2023, 06:34 AM   #13
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Actually I was looking at it and it was rattling off the heat shield on the right side muffler
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