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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N54 Turbo Engine / Drivetrain / Exhaust Modifications - 335i > What quad tips for mtech rear bumper?



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      02-03-2020, 11:46 AM   #1
lukemcmullen45
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What quad tips for mtech rear bumper?

I am thinking about getting the carbon fiber diffuser for my mtech bumper on my 2007 e92 335i. If I got the one fit for quad tips, what quad tips do I get? I’m also thinking about getting a muffler delete, so could I just throw tips on that fit on the dual pipes and split into 4 tips?

For example, would these random eBay exhaust tips I found work?
https://rover.ebay.com/rover/0/0/0?m...2F372759531509

I would never go with these tips cause I don’t like the burnt look, but I’m more talking about fitment. Would 4in outlet be too big? Do I need the tips to be off-centered? Inlet size I know for me would be 2.5in. But more just outlet size and if it needs to be off-centered.

Thank for any help!
- Luke
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      02-07-2020, 08:03 PM   #2
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I built a custom exhaust for my car using single tips on each side at 3.5" and they're pretty damn big. I'd probably go with a 3" dual tip design that keeps the tips even with each other. Other than that single vs dual walled and finish is all preference

here is a pic of a 3.5" tip for scale: imgur.com/Webb6Zs.png
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      02-09-2020, 10:41 PM   #3
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Quote:
Originally Posted by okayboomer View Post
I built a custom exhaust for my car using single tips on each side at 3.5" and they're pretty damn big. I'd probably go with a 3" dual tip design that keeps the tips even with each other. Other than that single vs dual walled and finish is all preference

here is a pic of a 3.5" tip for scale: imgur.com/Webb6Zs.png
Oh geez, I ended up just going with new dual tips for now. I just got my 4” black tips in today, I think they’ll fit barely, we’ll see though.
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      02-10-2020, 12:07 PM   #4
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Originally Posted by lukemcmullen45 View Post
Oh geez, I ended up just going with new dual tips for now. I just got my 4” black tips in today, I think they’ll fit barely, we’ll see though.
Can you post pics when it's done? I want to see how they look
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      02-10-2020, 02:24 PM   #5
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Quote:
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Can you post pics when it's done? I want to see how they look
Yes I will. The tips I bought are here:

https://ebay.to/39gc0FI
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      02-13-2020, 10:31 AM   #6
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I like the double walled design you picked, they're gonna look great
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      02-13-2020, 11:57 AM   #7
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Quote:
Originally Posted by lukemcmullen45 View Post
Quote:
Originally Posted by okayboomer View Post
I built a custom exhaust for my car using single tips on each side at 3.5" and they're pretty damn big. I'd probably go with a 3" dual tip design that keeps the tips even with each other. Other than that single vs dual walled and finish is all preference

here is a pic of a 3.5" tip for scale: imgur.com/Webb6Zs.png
Oh geez, I ended up just going with new dual tips for now. I just got my 4” black tips in today, I think they’ll fit barely, we’ll see though.
I went with dual 3.5" tips that just cleared. I also dremeled the rear m sport diffuser using the template from the remus website for their quad exhaust.
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      02-13-2020, 12:18 PM   #8
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Quote:
Originally Posted by Soden82 View Post
Quote:
Originally Posted by lukemcmullen45 View Post
Quote:
Originally Posted by okayboomer View Post
I built a custom exhaust for my car using single tips on each side at 3.5" and they're pretty damn big. I'd probably go with a 3" dual tip design that keeps the tips even with each other. Other than that single vs dual walled and finish is all preference

here is a pic of a 3.5" tip for scale: imgur.com/Webb6Zs.png
Oh geez, I ended up just going with new dual tips for now. I just got my 4" black tips in today, I think they'll fit barely, we'll see though.
I went with dual 3.5" tips that just cleared. I also dremeled the rear m sport diffuser using the template from the remus website for their quad exhaust.
What attachment did you use on the dremmel?
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      02-13-2020, 03:33 PM   #9
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Quote:
Originally Posted by mweisdorfer View Post
Quote:
Originally Posted by Soden82 View Post
Quote:
Originally Posted by lukemcmullen45 View Post
Quote:
Originally Posted by okayboomer View Post
I built a custom exhaust for my car using single tips on each side at 3.5" and they're pretty damn big. I'd probably go with a 3" dual tip design that keeps the tips even with each other. Other than that single vs dual walled and finish is all preference

here is a pic of a 3.5" tip for scale: imgur.com/Webb6Zs.png
Oh geez, I ended up just going with new dual tips for now. I just got my 4" black tips in today, I think they'll fit barely, we'll see though.
I went with dual 3.5" tips that just cleared. I also dremeled the rear m sport diffuser using the template from the remus website for their quad exhaust.
What attachment did you use on the dremmel?
It was similar to the one in the picture, third from the left. https://images.homedepot-static.com/...86-64_1000.jpg
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For now...
MHD tuned
VRSF Race IC
DCI
ATM exhaust
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      02-13-2020, 06:43 PM   #10
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Quote:
Originally Posted by Soden82 View Post
Quote:
Originally Posted by mweisdorfer View Post
Quote:
Originally Posted by Soden82 View Post
Quote:
Originally Posted by lukemcmullen45 View Post
Quote:
Originally Posted by okayboomer View Post
I built a custom exhaust for my car using single tips on each side at 3.5" and they're pretty damn big. I'd probably go with a 3" dual tip design that keeps the tips even with each other. Other than that single vs dual walled and finish is all preference

here is a pic of a 3.5" tip for scale: imgur.com/Webb6Zs.png
Oh geez, I ended up just going with new dual tips for now. I just got my 4" black tips in today, I think they'll fit barely, we'll see though.
I went with dual 3.5" tips that just cleared. I also dremeled the rear m sport diffuser using the template from the remus website for their quad exhaust.
What attachment did you use on the dremmel?
It was similar to the one in the picture, third from the left. https://images.homedepot-static.com/...86-64_1000.jpg
So you used the sander wheel.
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      02-28-2020, 08:15 PM   #11
lukemcmullen45
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Quote:
Originally Posted by okayboomer View Post
Can you post pics when it's done? I want to see how they look
I’ll make a separate post. But these are the pics from the eBay tips.



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