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BMW M5 F90 (2018+) General Forums Engine, Exhaust, Drivetrain, Tuning Modifications    UPDATED: Akra axle-back with Dinan X pipe

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      12-26-2023, 09:15 AM   #1
carseatsm5
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Updated: Cold start in Sport Plus and revs.

In case anyone else considering this setup or curious. Dinan X pipe alongside my Akra axle-back.

https://youtu.be/eA49-Z3-LHM?feature=shared

https://youtu.be/1lx3Tn85WNg?feature=shared
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      12-27-2023, 12:41 AM   #2
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Quote:
Originally Posted by carseatsm5 View Post
In case anyone else considering this setup or curious, finally had the Dinan X pipe installed last week alongside my Akra axle-back.

I think the car finally rumbles the way it should. Can actually hear it driving around and I don’t just mean the overrun/pops/bangs theatrics. Thankfully not obnoxious at all just more of that V8 growl.

Here’s a cold start video. Exhaust button is on (green). Will follow up with some revs.

https://youtu.be/FZEF-KAiDss?feature=shared
Couldn’t agree more — just more of that V8 growl. Sounds fantastic!

Can’t wait to hear some revs!
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      12-28-2023, 02:04 PM   #3
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Nice, thank you for sharing
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      01-26-2024, 09:24 AM   #4
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your "exhaust button" doesn't do anything on cold start. Valves won't open unless you pull the fuse or code them to be open all the time.

you can see this in your video in which gas is only exiting the inner tips and not the outers.
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      01-26-2024, 02:47 PM   #5
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Quote:
Originally Posted by Maverik259 View Post
your "exhaust button" doesn't do anything on cold start. Valves won't open unless you pull the fuse or code them to be open all the time.

you can see this in your video in which gas is only exiting the inner tips and not the outers.
Can I code this with bimmercode
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      01-26-2024, 04:01 PM   #6
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Why not just open them and then disconnect the harnesses to the motors? Then they stay open.
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      01-26-2024, 04:06 PM   #7
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Didn’t notice they weren’t all open on cold start. Will need to fix that!
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      01-26-2024, 04:49 PM   #8
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start the car in sports plus to get the valve open sound. its a huge difference
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      01-28-2024, 01:59 PM   #9
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Updated.
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