Free F80/F82 Exhaust Hack (No tools needed; takes less than 5 minutes) [With Images]

[dinonz]

Originally Posted by shahano

Quick question. Arent the valves always open on sport plus?

No - they can still close at various times.

[alz0rz]

I pulled fuses 146/147 and it worked to keep the exhaust valves opened and I have not received any error. I have a 2016 M3 without the Driver Assistant package.

[ecf34]

Originally Posted by Twin turbs

Hey does anyone have any pictures of the fuse box in trunk to remove fuse 146 and 147 and can u always put the fuse back without being burnt over time? Does it affect anything else on the car but the valves like any codes

Thanks

I don't have a picture but they're brown colored fuses, and you can put them back anytime you want (they're easily accessible).

It seems that these fuses affect functions of the Drivers Assistance Pkg, so I would do the connector method if you have that package. Otherwise should be no problems (no codes)

[DanSala]

Originally Posted by Acree

You need to add a step that protects the electrical connector. Otherwise dirt and crap are going to get inside and make it fairly difficult to plug back in without bending pins later on.

What type of tape should I use to protect that?

[Acree]

Originally Posted by DanSala

What type of tape should I use to protect that?

Electrical tape would work just fine. I usually start it on the connector side, overlapping as I move up the wire, and then zip tie the end where the tape terminates. This will keep it from unraveling indefinitely.

[Xtabi]

Originally Posted by Alvinized52

I thought it would be some new discovery. I almost got very excited.

Argh me too!

[CanAutM3]

Originally Posted by shahano

Quick question. Arent the valves always open on sport plus?

Even in Sport and Sport+, the valves close with moderate throttle input and revs below 4000RPM for 3rd gear and up.

[2015F80]

OLD NEWS.

The pictures are very good BTW.

Best picture is the one that shows you exactly where to push on the connector to release it.

That's the most difficult part.

[salukutinaveen]

Originally Posted by dom_cmh

Unfortunately this didn't work for me. I got an error right away after pulling 146 and 147 saying something about the parking assistant malfunction. I have a 2016 build with the Driver Assistant package. I'm guessing the exhaust flap fuses are different on 2016's or they tied more things into the same ones. Anyone else have any thoughts?

Hey were you able to resolve the issue ? I have Drivers Assistance plus and want to do the mod.

Thanks in advance !

[AustinY 2208]

Originally Posted by DanSala

What type of tape should I use to protect that?

Try the jrc bmw m4 valve delete kit

[boi222]

Curious if anyone knows of a way to keep the cold start sound on always ? I know some don't like the sound but I like it and wished it didn't go away after it warms up

[Bluex]

Originally Posted by boi222

Curious if anyone knows of a way to keep the cold start sound on always ? I know some don't like the sound but I like it and wished it didn't go away after it warms up

Enjoy the feel of blood dripping from your ears, eh?


To at least attempt to be productive, this unplugged flap module mod will give you more (louder) of what you're looking for, but not that loud lawnmower sound that you desire.

[aboulfad]

Originally Posted by sycd

Even easier: remove fuses 146 and 147 in the trunk when the flaps are open.

To open the flaps, the easiest way is turn car on (but don't start the engine), put on sport, and press gas pedal. You'll hear the flaps open.

Originally Posted by heckyeahbro69

I probably wouldn't take those fuses out. They power more then just the flaps.

Originally Posted by alz0rz

I pulled fuses 146/147 and it worked to keep the exhaust valves opened and I have not received any error. I have a 2016 M3 without the Driver Assistant package.

This also has been discussed before, see here for full details: http://f80.bimmerpost.com/forums/sho...68&postcount=4
And http://f80.bimmerpost.com/forums/sho...0&postcount=22

NOTE: for all that are unplugging modules, connectors that can trigger faults in ISTA, just remember to plug things back (flaps, ASD module, ...) as this will prevent your dealer from performing any software update. I helped a fellow member with a similar issue http://f80.bimmerpost.com/forums/sho...2&postcount=90

I don't know what happens when you disconnect the flap connector but just keep a mental note or if somone have ISTA, check if you have any faults in DME.

[RCF80M3]

Guys i know there has been some debate on the fuses vs pulling the plugs but you can get the JRC valve kit for $20 shipped anywhere in the world. Seems like the best of both worlds honestly. Looks like they're clearing inventory so get it while they last

jrc-designs.com

[LukeM15]

Any know of a dummy plug to place in the connectors? Electric tape is good but I’m sure it won’t hold up forever.

[F80_BK]

Originally Posted by LukeM15

Any know of a dummy plug to place in the connectors? Electric tape is good but I’m sure it won’t hold up forever.

Why not just keep the flaps opened by forking over the 30 bucks for this BimmerLink app? Assuming you have a compatible OBD adapter. If you use BimmerCode, then the same adapter will work with BimmerLink. Otherwise you will need to spend an additional 20 bucks for the adapter. So for about 50 bucks total you can have full control over it at all times. Not to mention the app does many other things... enable/disable ASD, enable/disable Exhaust Burble sound tuning, etc.

Instead of wasting 60+ bucks on 2 dummy plugs...


BimmerLink App:

https://www.bimmerlink.app/


This is the adapter I have used for years in my f80, for both BimmerLink and BimmerCode. Its no longer listed on the BimmerCode/BimmerLink list of compatible adapters, simply only because its old, and newer adapters are now on the list. But it used to be listed on the compatible list, and I can confirm it DOES work with no issues. Its much cheaper than the newer ones also:

Vgate WiFi iCar2

https://www.amazon.com/Vgate-Elm327-...5057502&sr=8-5

[LukeM15]

^^noted. Someone advised me that I can disable it through BM3 in all modes. I do like your suggestion also. Thanks.

[chrismjspencer]

Originally Posted by LukeM15

^^noted. Someone advised me that I can disable it through BM3 in all modes. I do like your suggestion also. Thanks.

I only see options in BM3 for doing this in Sport & Sport+ ... is there an option for Comfort (default when starting) somewhere?

[wesleyredhat]

Does anyone have the electrical diagram for this valve, I would like to connect it to my F30, I am assembling the F80 exhaust.