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BMW 5-Series (G30) Forum Cosmetic Modifications M Performance Exhaust Alternative Tips or Diffuser

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      01-18-2021, 09:57 AM   #1
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M Performance Exhaust Alternative Tips or Diffuser

Hi,

The 540i MPE uses the same diffuser as the m550i so that it can fit the bigger exhaust tips that come with it. The problem is that there are few, if any, more aggressive rear diffusers that fit the MP Exhaust tips as all aftermarket diffusers seem to be made for the standard tips.

Does anyone know if there are any alternative tips that can be used with the MPE? Ideally a set of twin pipes on either side, so that a more "off the shelf" diffuser can be used?

Alternatively, are there any slightly more aggressive diffusers that can be used with the MPE tips? We don't get the M550i in the UK, not the pre LCI version anyway, so there is zero market for diffusers for those, which I guess would also work on the 540i with MPE but if anyone knows of one, I'd be grateful to know.

So far my best option is part numbers 51192412409 and 51192412406 which I believe are for the M550i but would like to look for single piece alternatives.

Would the M5 diffuser fit on the MPE tips?

Thanks

Edit: Whatever I fit also needs to allow the kick sensor and the electric towbar to still operate ok

Last edited by 325_bucks; 01-18-2021 at 10:07 AM..
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      01-22-2021, 03:34 PM   #2
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Quote:
Originally Posted by 325_bucks View Post
Hi,

The 540i MPE uses the same diffuser as the m550i so that it can fit the bigger exhaust tips that come with it. The problem is that there are few, if any, more aggressive rear diffusers that fit the MP Exhaust tips as all aftermarket diffusers seem to be made for the standard tips.

Does anyone know if there are any alternative tips that can be used with the MPE? Ideally a set of twin pipes on either side, so that a more "off the shelf" diffuser can be used?

Alternatively, are there any slightly more aggressive diffusers that can be used with the MPE tips? We don't get the M550i in the UK, not the pre LCI version anyway, so there is zero market for diffusers for those, which I guess would also work on the 540i with MPE but if anyone knows of one, I'd be grateful to know.

So far my best option is part numbers 51192412409 and 51192412406 which I believe are for the M550i but would like to look for single piece alternatives.

Would the M5 diffuser fit on the MPE tips?

Thanks

Edit: Whatever I fit also needs to allow the kick sensor and the electric towbar to still operate ok
I was in the same position after fitting MPPSK which comes with MPE. 51192412409 Is actually a wrong part as is for a standard exhaust and mp-diffuser. You need 51192412410 and 51192412406. This is the only standard option working with kick sensor and tow bar. See my pic
You can use 51192412405 instead of 51192412406, but without cutting holes kick sensor and tow bar will not work, and as it only comes in carbon, will be a bit pricey diy.
M550i from LCI is another option, but is less pronounced.
M5 will work as well, but will need exhaust support as discussed here https://g30.bimmerpost.com/forums/sh...1676403&page=2 but not sure about kick sensor and tow bar. I personally don’t like M5 parts on non-M car
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Last edited by D2om; 01-23-2021 at 05:44 PM..
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      02-05-2021, 03:33 AM   #3
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Thanks for this reply, that's exactly what I want to do. I think due to the lack of aftermarket pieces that look good and would fit the MPE, I will go down this route. Yours seem to be gloss black, is that how they come as I thought they came in matte black or grey to be painted?
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      02-05-2021, 06:19 PM   #4
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Quote:
Originally Posted by 325_bucks View Post
Thanks for this reply, that's exactly what I want to do. I think due to the lack of aftermarket pieces that look good and would fit the MPE, I will go down this route. Yours seem to be gloss black, is that how they come as I thought they came in matte black or grey to be painted?
Diffuser itself is gloss black, bumper trim is mat black.
I was lucky to get both parts second hand in mint condition with the trim already painted to match colour of my car
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      02-20-2021, 08:14 AM   #5
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hi bud,

i got this diffuser here that is used and a few scuff marks but need to clear some space. will let it go for £40 if interested?

sure you could paint it to colour code it.

https://www.ebay.co.uk/itm/BMW-G30-G...kAAOSw3Epbgs~K
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