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F85 X5 M and F86 X6 M (2016 - Current)
The BMW X5 M and X6 M are high-performance derivative of the X5 and X6. Introduced at the 2014 LA Auto Show and appearing in dealerships in 2015. Both modeles are powered by BMW's S63tu twin turbo charged V8 making 567 HP and 553 lb-ft of torque, the most power for any BMW xDrive vehicle.

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Old 07-02-2020, 02:20 PM
UKF85 UKF85 is offline
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Mein Auto:
Anyone done an OEM exhaust mod ?

Hi Guys. I just bought a 2015 F85 in black with 21" wheels. It looks great but could do with sounding a little more aggressive. I hear that there is a mod to the OEM exhaust which gives it a still deeper and 30% louder note. You have to cut into the muffler. Anyone tried it and can recommend on the sound and drone if any ? Also what exactly is done in the mod ?


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Old 07-05-2020, 04:51 AM
corporalq corporalq is offline
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Mein Auto: 2015 BMW X4 M-Sport

Just picked up an X5M Friday. I'm interested in this also.
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Old 07-05-2020, 06:00 AM
640ijims 640ijims is online now
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Mein Auto: 18 X5M, retired 640i vert
IMHO, before you cut into exhaust & end up with insufferable drone at highway speeds or some other rpm range, simply “toggle” engine dynamics button to “sport plus” & give that a try for a bit.
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Old 07-06-2020, 08:29 PM
M_Bimmer M_Bimmer is offline
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Mein Auto:
Before you go cutting up your exhaust, like was required on the E9X ///M3's, your X5 can be set to permanent "bypass" in the following manner:

1. Drive around until engine is warmed up
2. Place into Sport+ mode
3. Exhaust flaps should go to "bypass"
4. While in sport + and engine running, and in Park, unplug the electrical solenoid plugs on left and right exhaust pipes
5. Protect plugs and socket from water by covering them well, and zip tie the wiring harness so it doesn't hand below the bumper
6. Turn off engine
7. Next startup, your exhaust will stay in bypass

I did this for a while, and while it is loud, enough to perturb most neighbors, without got pretty I went back to stock.

This will not set off any dashboard lights....

....and haven't checked to see if there is a VO code to keep flaps open....
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