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BMW M5 F90 (2018+) General Forums Engine, Exhaust, Drivetrain, Tuning Modifications    OEM exhaust tip specs

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      11-15-2018, 12:33 AM   #1
BigMacSmallFries
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OEM exhaust tip specs

Hey,

I'm thinking of changing the tips and leaving the sport exhaust on the M5. Can someone tell me the length of the stock exhaust tips, and also what's the outer diameter of the exhaust inlet that the tips stay on?

Thanks!
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      11-22-2018, 11:02 PM   #2
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I'm also very interested in changing out the stock tips, but I can't seem to find any aftermarket options for the F90.
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      11-23-2018, 07:25 AM   #3
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Quote:
Originally Posted by Demon Barber View Post
I'm also very interested in changing out the stock tips, but I can't seem to find any aftermarket options for the F90.
Just pull them off and get them powder coated in the coating you desire.
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      11-23-2018, 10:03 AM   #4
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Quote:
Originally Posted by onfireX5 View Post
Just pull them off and get them powder coated in the coating you desire.
Certainly an option, but I'm not crazy about the shape and size.
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      11-23-2018, 10:16 AM   #5
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Quote:
Originally Posted by Demon Barber View Post
Certainly an option, but I'm not crazy about the shape and size.
That makes it a toughie. So far, the aftermarket is limited to color. Might take one of yours off and take it to a fab shop for some custom metal or CF work. Might cost a bit, but you could get one of one set.
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      11-23-2018, 10:37 AM   #6
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Quote:
Originally Posted by onfireX5 View Post
That makes it a toughie. So far, the aftermarket is limited to color. Might take one of yours off and take it to a fab shop for some custom metal or CF work. Might cost a bit, but you could get one of one set.
I like that idea. I feel like with a quality midpipe resonator delete/ X-pipe install and better looking tips, I'd be happy without dropping 5 to 10k on an exhaust. And, I'd still have factory valve control. I'll have to look around for a local mchqine shop that can make exhaust tips to my liking.

Last edited by Demon Barber; 11-23-2018 at 06:52 PM..
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      12-02-2018, 11:16 PM   #7
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I believe the exhaust outlet size is about 73mm, I see there's some MPerformance Exhaust tips but they only fit with a 70mm outlet size. Wondering what options are out there for this exhaust? Not interested in changing out the exhaust.
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      12-03-2018, 10:18 AM   #8
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Contact these guys they may be able to manufacture. I have them and they are very good quality

https://kemir.en.alibaba.com/product...272e3745DFWvzP
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      12-03-2018, 12:25 PM   #9
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Quote:
Originally Posted by OneExtra View Post
Contact these guys they may be able to manufacture. I have them and they are very good quality

https://kemir.en.alibaba.com/product...272e3745DFWvzP
Thanks, you were able to custom order just 4 tips with an inlet bigger than 70mm? What length tips did you go with? This is exactly what I want.
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      12-03-2018, 10:26 PM   #10
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For those that are interested, 73mm is the inlet size on the exhaust, so as long as you buy tips with that same inlet size or slightly bigger, should clamp on nicely.
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      12-13-2018, 05:57 AM   #11
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Quote:
Originally Posted by BigMacSmallFries View Post
Thanks, you were able to custom order just 4 tips with an inlet bigger than 70mm? What length tips did you go with? This is exactly what I want.
Speak with Rachel at Kemir Carbon she is spot on with advice
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      12-13-2018, 10:57 AM   #12
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Quote:
Originally Posted by OneExtra View Post
Speak with Rachel at Kemir Carbon she is spot on with advice
Any pics you can share?
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      12-14-2018, 05:53 AM   #13
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https://kemir.en.alibaba.com/product...c4977bda4ND1cF
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      12-14-2018, 07:53 AM   #14
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Thx but we've all seen that link. You said you have them. Thats what I was hoping to see a pic of.
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      12-14-2018, 10:17 AM   #15
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Hey,

Problem with that link you sent is that you have an F10 M5 which has 70mm outlet, the F90 M5 has a 73mm outlet, they don't have a tip that wide. I will try once more, but the application doesn't exist yet. Sent an email their way to see if they can get these going.
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      12-17-2018, 08:40 AM   #16
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Quote:
Originally Posted by OneExtra View Post
Speak with Rachel at Kemir Carbon she is spot on with advice
Spoke with Rachel and she confirmed they have no products for the F90 at this time. They do have F10 sizes. What exactly were you referring to when you stated "you have these"?
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      12-17-2018, 12:57 PM   #17
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Quote:
Originally Posted by Poleposition View Post
Spoke with Rachel and she confirmed they have no products for the F90 at this time. They do have F10 sizes. What exactly were you referring to when you stated "you have these"?
I also spoke with her today and got the same answer, despite their site saying they do custom.
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      12-17-2018, 01:02 PM   #18
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Quote:
Originally Posted by wassy View Post
I also spoke with her today and got the same answer, despite their site saying they do custom.
Well I guess now we know why we never got the pics that were requested. People are strange. Wasted my time with this shit.
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      12-23-2018, 10:00 AM   #19
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until someone comes up with larger bolt-on tips like BMS.. just get the stock ones coated.. that's what i plan on doing.. my guy powder-coats all 4 for $60

so my plan is to run that until something better becomes available.
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      12-31-2018, 12:08 PM   #20
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Here are the sizes of the stock tips for those who are interested.

F90 M5 Non-CP

Exhaust Tip (Chrome or Black)
Outside diameter: 85mm
Inner diameter rear: 83mm
Inner diameter front: 73mm
Rolled edge thickness front: 8mm
Clearance between tips: 17mm

Muffler Outlet (Part of muffler)
Outside diameter: 75mm
Outside diameter (after centering pin): 69mm
Inner diameter: 73mm

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