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View Poll Results: Do you have drone WITH the valve mod?
YES, I have a DCT and have drone WITH the valve mod. 29 38.16%
YES, I have a 6MT and have drone WITH the valve mod. 3 3.95%
NO, I have a DCT and DO NOT have drone WITH the valve mod. 15 19.74%
NO, I have a 6MT and DO NOT have drone WITH the valve mod. 29 38.16%
Voters: 76. You may not vote on this poll

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      12-05-2014, 12:07 AM   #45
evanescent03
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awesome comparo. I'm definitely doing this. thanks for putting together the video!

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      12-05-2014, 12:54 AM   #46
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Awesome vids!!
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      12-05-2014, 01:14 AM   #47
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My favorite mod, whoever hasn't done this yet is honestly missing out!
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      12-05-2014, 01:37 AM   #48
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I'm definitely doing this tomorrow!! Sounds SOOO much better
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      12-05-2014, 03:18 AM   #49
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I did this simple mod on my X3 35i and it actually sounds pretty good - louder, bassier and more aggressive, and from the video clearly more so on an M3. Mine does drone at highway speeds in Normal but doesn't in Sport or Sport + which is what I use anyway. Takes almost no time and is completely reversible if you don't like it.
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      12-05-2014, 05:27 AM   #50
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Thanks! Great videos! I will be doing this today as well.
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      12-05-2014, 07:05 AM   #51
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It's only open valves in efficient mode ? Does sound change in sport and sport plus mods?
I didnt understand the purpose of this mod..What will be the difference after doing that mod? In sport and sport plus more sound?
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      12-05-2014, 07:38 AM   #52
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Quote:
Originally Posted by castilla View Post
It's only open valves in efficient mode ? Does sound change in sport and sport plus mods?
I didnt understand the purpose of this mod..What will be the difference after doing that mod? In sport and sport plus more sound?
If I'm right, in sport and sport + the valves are closed in some situations like cruising, low revs, traffic and start up . With this mod, vales are always opened.

BTW, best thread ever!!
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      12-05-2014, 10:34 AM   #53
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Quote:
Originally Posted by nasdaq100 View Post
If I'm right, in sport and sport + the valves are closed in some situations like cruising, low revs, traffic and start up . With this mod, vales are always opened.

BTW, best thread ever!!
Thanks.Does anyone get error/warning after unplug the wires?
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      12-05-2014, 01:18 PM   #54
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Wow from the videos it's like that little mod gets you 90% of the sound yet 0% of the price of the bmw perf exhaust, sounds awesome.

Would love to hear that paired with either second cat delete or catless dp/second cat intact.

Great vids!
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      12-05-2014, 01:26 PM   #55
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Open mode is proper!
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      12-05-2014, 01:39 PM   #56
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Any error code with this mod??
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      12-05-2014, 01:54 PM   #57
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Quote:
Originally Posted by castilla View Post
Any error code with this mod??
No lights yet but I have no idea inside the software.
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      12-05-2014, 01:54 PM   #58
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What do you do after you unplug it? Just tape it up?
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      12-05-2014, 01:55 PM   #59
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Quote:
Originally Posted by StealYourFace View Post
Wow from the videos it's like that little mod gets you 90% of the sound yet 0% of the price of the bmw perf exhaust, sounds awesome.

Would love to hear that paired with either second cat delete or catless dp/second cat intact.

Great vids!
Downside is that the full throttle note is no different. But it is cool for part throttle driving around town and angry-neighbor morning startups
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      12-05-2014, 01:56 PM   #60
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Quote:
Originally Posted by Jay1994 View Post
What do you do after you unplug it? Just tape it up?
I just wrapped my plugs (both ends, both sides) thoroughly in electrical tape and the tied them out of the way where the harness clips to the heat shield.
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      12-05-2014, 05:00 PM   #61
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coming from an S65 owner...i love what you did with this simple mod. I feel this sounds better than any aftermarket system, for now atleast. Well done!
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      12-05-2014, 05:38 PM   #62
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Great comparison, thanks for sharing!
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      12-05-2014, 06:35 PM   #63
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Just did this today. Amazing. Easy. No error code, instantaneous better sound, eliminates flatulent cold-start. Best part... its reversible, however should be required by all M3/M4 owners!

I cut the fingertips off of a Nitrile glove and covered the plug (home-made condom for the plug), tie-wrapped to secure, and then taped the female receptacle with electrical tape.

Viola! No need to get an exhaust system... maybe down-pipes though!

Thanks a million for this thread!

Newb!
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      12-05-2014, 10:52 PM   #64
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was on the fence about this mod till i saw your comparison video. Did the mod last night. Wont be looking back! sounds proper now! this will will def hold me off till i purchase a M performance exhaust beginning of 2015!

great videos!
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      12-06-2014, 12:25 AM   #65
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I just did the same thing that Steve B did. It is late now, so I will test out the sound tomorrow.

There is a newer firmware update for the Awron thinge that can open up the flap from inside the cabin. Pretty nifty!

http://f80.bimmerpost.com/forums/sho....php?t=1065031

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      12-06-2014, 11:47 AM   #66
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This makes me believe I can code it so that it is always open instead of "auto".

Quote:
Originally Posted by Sir Loin View Post
I just did the same thing that Steve B did. It is late now, so I will test out the sound tomorrow.

There is a newer firmware update for the Awron thinge that can open up the flap from inside the cabin. Pretty nifty!

http://f80.bimmerpost.com/forums/sho....php?t=1065031

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