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BMW M5 F90 (2018+) General Forums Engine, Exhaust, Drivetrain, Tuning Modifications    What do I do Exhaust-wise ? Please help !

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      03-17-2020, 06:14 PM   #1
mtlbimmerm6
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What do I do Exhaust-wise ? Please help !

Hey guys Im a noob sorry for the rookie questions.

I want it loud so I know im gonna replace the primary and secondary cats..

My options list says I have the M sport exhaust system?

Do I leave that and just replace the cats?

any help would me much appreciated.

Thanks!
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      03-17-2020, 06:23 PM   #2
BSdoc
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I think if you are planning on replacing both sets of downpipes for sure, then you would also require a tune to prevent the dreaded CEL...if that's the case, I would probably start with that and see what it gives you.

I have stock downpipes and just did the Eisenmann performance exhaust with non-resonated midpipe and it probably added 20% volume with some change in characteristics. There are a ton of cat-back options to consider, and some allow for valve control and some don't...also something to consider since that will allow you to control the volume a bit better if you end up getting a valved system (ie Eisenmann performance vs the race edition, which has no valves).

Sound is such a subjective thing, and you'll go crazy trying to pick what you want if you're anything like me. Check out my recent thread for some sound clips if you'd like.

Cheers.
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      03-17-2020, 06:26 PM   #3
JBA87
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Here are downpipes with m performance exhaust

In cabin it's not that loud




Just installed
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      03-17-2020, 06:31 PM   #4
mtlbimmerm6
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Quote:
Originally Posted by JBA87 View Post
Here are downpipes with m performance exhaust

In cabin it's not that loud




Just installed


I don't see any video ?
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      03-17-2020, 08:47 PM   #5
JBA87
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Quote:
Originally Posted by mtlbimmerm6 View Post
Quote:
Originally Posted by JBA87 View Post
Here are downpipes with m performance exhaust

In cabin it's not that loud




Just installed


I don't see any video ?
vimeo.com/398383750

Click that
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      03-17-2020, 09:58 PM   #6
mtlbimmerm6
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Quote:
Originally Posted by JBA87 View Post
vimeo.com/398383750

Click that

sounds incredible
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