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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Technical Forums > DIY Guides > DIY: 335i Exhaust Sound Mod. Better, and even easier than golf tee mod.



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      11-01-2010, 04:07 PM   #397
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Quote:
Originally Posted by ergoyo View Post
Nonsense, and I think this ongoing discussion should be put to rest. There's no codes associated with this mod, period. People need to stop the paranoia about this.

Why? Easy, first because one does not get any of these codes and/or messages each and every single time the OEM exhaust is replaced for an aftermarket, even a BMW Performance catback, etc.

Second, when my injectors rack were replaced I got a copy of the codes printout from when it went in for service, looked each of them up and none of them meant anything other than the injectors issue. The real and ultimate proof that, at least on VB73 335s, the unplugging does NOTHING!!!!

Now watch as despite this the debate goes on and on and on.....
Incorrect, it does list a code, my dealership ended up replacing the actuator because the code registered. I had it unplugged for a week but then plugged it back in.
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      11-08-2010, 05:30 PM   #398
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i dopnt understand why people are making a big deal. sure it will throw a hidden code. its not going to ding around at all saying there is an error. this is not the type of thing that will cause the dealership to void ur warranty. if you are scared it will, plug it back in before service, takes 5 seconds. sure the code will be there and if they look (probably wont) nothing will look out of the ordinary. people are so paranoid. its so dumb
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      11-08-2010, 06:27 PM   #399
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or just just reach down there and pull the thing off and stick a bb in it and stick back on and you're set.
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      11-08-2010, 06:35 PM   #400
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Quote:
Originally Posted by Bakeme521 View Post
or just just reach down there and pull the thing off and stick a bb in it and stick back on and you're set.
Anybody have a BB they'd sell me? Not the kind of thing I have around the house, and I haven't been able to find the right sized ball bearing at local hardware stores.
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      11-16-2010, 03:56 AM   #401
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Quote:
Originally Posted by ergoyo View Post
Nonsense, and I think this ongoing discussion should be put to rest. There's no codes associated with this mod, period. People need to stop the paranoia about this.

Why? Easy, first because one does not get any of these codes and/or messages each and every single time the OEM exhaust is replaced for an aftermarket, even a BMW Performance catback, etc.

Second, when my injectors rack were replaced I got a copy of the codes printout from when it went in for service, looked each of them up and none of them meant anything other than the injectors issue. The real and ultimate proof that, at least on VB73 335s, the unplugging does NOTHING!!!!

Now watch as despite this the debate goes on and on and on.....
This mod will eventually give your car cancer.
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      11-16-2010, 05:55 AM   #402
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Quote:
Originally Posted by TRBOBMR View Post
This mod will eventually give your car cancer.
+1 this valve is not installed for nothing its to make backpressure, so be carefull i would leave it as it is its not big difference if u unplug it
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      12-05-2010, 12:53 AM   #403
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Had this now for nearly a year and no issues or codes. The car sounds great. The best mod I could have done without spending any money. I love the pops and farts the car gives when you let go of the gas. It sounds amazing.
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      12-18-2010, 04:06 PM   #404
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So for those of us with the Procede, can we just clear the codes using the Procede if we chose to unplug this?

TIA
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      12-18-2010, 04:06 PM   #405
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I'm referring to the code that actually gets stored in the DME btw......
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      12-23-2010, 11:09 PM   #406
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The bmw performance exhaust made by bmw does not have the flapper, so I don't know why everyone is overreacting about unplugging it.
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      12-25-2010, 05:01 PM   #407
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I'll have to try this out while I'm off.
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      12-30-2010, 01:09 PM   #408
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i have to check my car but does the 2011 335is have this ??? my car is currently snowed in till tom but im not sure ?
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      01-17-2011, 01:04 PM   #409
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I have had this mod for over a year and no problem what so ever. The car is slightly louder during start up and dealer never said anything about it. great free mod
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      01-19-2011, 04:40 PM   #410
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just tried this out on mine... noticed some rattling when traveling at 30-40mph in the city and also at highway speeds

Love the sound but hate the rattle.
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      01-20-2011, 02:08 PM   #411
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does anybody know if it works the same way with an Alpina B3S Biturbo 400HP (2010)??

thanks
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      01-28-2011, 12:23 AM   #412
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Works and sounds great - 2 months now
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      02-04-2011, 11:55 PM   #413
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anyone has a sound clip of this?

does it work for 2011 335i sedan? will it give an error code?
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      02-19-2011, 09:27 PM   #414
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Subscribing...

Anyone w/ a sound clip and - I'm assuming that my 2011 LCI 335i has this - correct?

Thanks Guys!
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      03-06-2011, 01:39 AM   #415
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Reseting the exhaust actuators

Hi, I unplugged the actuator control in the trunk today and I realised that it doesn't reset when you plug it back in. The butterfly valve seems to remain open all the time now (ie doesnt close when starting the car, or at low revs)

Has anyone else had the same problem? Mine's a 2007 e92 335i.
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      03-06-2011, 03:20 PM   #416
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Quote:
Originally Posted by **335i** View Post
as bmw told me that this is not only for sound it also works for engine to prolong work of engine and also presure so all thing can have later result
And what about everyone who gets aftermarket exhaust? I've never heard a single person raise an issue with getting that done.
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      03-07-2011, 04:14 AM   #417
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Maybe its just because I am only a 330i but I didn't notice any difference in sound by doing this.
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      03-08-2011, 06:40 PM   #418
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Try this today. Took me less than 2 minutes.

Slightly louder and had a nice deeper tone. Love it.

Thanks for the sharing.
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