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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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Revlis's Avatar DIY: 335i Exhaust Sound Mod. Better, and even easier than golf tee mod.
Revlis
08-28-2007
OK I know I am not the first to do this, someone had to clue me in, but instead of plugging, crimping, or otherwise disconnecting the vacuum line under the car, just unplug the actuator in the trunk in front of the drivers side tail light. I was a little unclear as to how this works, but it's dead...
  #88  
By Year's_End on 02-03-2008, 04:13 PM
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Quote:
Originally Posted by AJayE92 View Post
Thats Pretty Fuckin Awesome, still considering whether i should do it or not
What's to consider man? Easy as hell, no consequences, go for it!
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  #89  
By Year's_End on 02-03-2008, 04:14 PM
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Quote:
Originally Posted by hov333 View Post
i just put a metal BB in the line and plugged the hose back where it was, it took me less time than it would take many to get to where the actuator is. essentially the two mods are the same thing so I have no idea where the OP got his thread title from.
...it would take more time to get a BB and get under the car to put it in than to just pop off a cover and pull a plug.
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  #90  
By Heat00 on 02-03-2008, 04:30 PM
just unplugged mine E90 335i.

I have to admit, it did sound nice at ide and reving it up..
didn't get to drive anywhere yet....

sweeeeet
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  #91  
By AJayE92 on 02-03-2008, 08:30 PM
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Quote:
Originally Posted by Bimmer Loyalist View Post
What's to consider man? Easy as hell, no consequences, go for it!
The NO CONSEQUENCES is what im considering... whether or not there is

the throwing an error to the ECU issue, and less BHP issue, less MPG issue

these are possible consequences
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  #92  
By I335 on 02-03-2008, 08:39 PM
Put the BB in the other end - no crawling under the car and not codes...
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  #93  
By Heat00 on 02-04-2008, 12:44 PM
been driving all day with the plug out...

it is definetly louder and I like it... especially highway crusing..

problem is.. now I want more lol !!!
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  #94  
By BMWagain on 02-09-2008, 10:03 AM
Good work guys!

I have planned my purchase of 335i now!
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  #95  
By PaulBailey@ltbmw on 02-11-2008, 01:34 AM
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Can you do this and the golf tee mod?
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  #96  
By spcheng on 02-11-2008, 04:17 AM
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Quote:
Originally Posted by xPaulBaiLeyx View Post
Can you do this and the golf tee mod?
+1
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  #97  
By HyperM3 on 02-11-2008, 10:48 AM
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Quote:
Originally Posted by xPaulBaiLeyx View Post
Can you do this and the golf tee mod?
Its the same thing. Why would you do both?
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  #98  
By Last E92 M3 on 02-11-2008, 11:49 AM
why did everyone put 1 for all these...it's so easy,inexpensive,clear;;;wtf?
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  #99  
By ianturner on 02-11-2008, 01:09 PM
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i thought it was super easy. less than 2 min
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  #100  
By luckyD on 02-11-2008, 04:17 PM
im sorry i just try this and it disent change 5hit sounds same no growl no extra sound no nothing how big is the difference? do i need some lab equipment to hear it? =)
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  #101  
By bronco on 02-13-2008, 06:27 PM
Yeah, I just did it, and I dont hear sh1t maybe I cant hear or something
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  #102  
By Mattscott on 02-13-2008, 08:33 PM
JUST FYI. Doing this throws codes! Not ones you can see but the dealer can see them!!!!

BE WARNED
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  #103  
By slant83 on 02-14-2008, 08:28 AM
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Like it matters if it throws codes. It'll only refer to a bad solenoid. Just plug it back in before a dealer visit and shrug your shoulders. Stop being concerned about "big brother", it's your car. Not much warranty to void at the tailpipe!
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  #104  
By japac1 on 02-14-2008, 12:20 PM
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I unplugged mine from inside the car. I did like the start-up exhaust note but hated the way it sounded at highway speeds, plus felt a lot of droning, so I plugged it back in....
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  #105  
By Hobbination on 02-16-2008, 12:19 PM
Who cares if it throws a code, after the exhaust leaves the downpipes and cats....it doesnt matter. It still travels out of factory exhaust pipes that BMW installed. The valve opens up anyway on its own once the car is warm and moving so again who cares? Were just opening it all the time, no harm.
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  #106  
By Sick Speed on 02-18-2008, 12:08 PM
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Just unplugged mine. At start up there was not a noticeable difference...but once the engine warmed and idle dropped down...boom! I could hear the difference.

I took it out on the highway too. There was no power decrease through any of the shifts and my acceleration remains sick. The sound is amazing. Much more powerful and more Ferrari - ish.

Thanks for the tip.

SS
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  #107  
By LaLakers91tc on 02-18-2008, 07:56 PM
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Quote:
Originally Posted by Sick Speed View Post
Just unplugged mine. At start up there was not a noticeable difference...but once the engine warmed and idle dropped down...boom! I could hear the difference.

I took it out on the highway too. There was no power decrease through any of the shifts and my acceleration remains sick. The sound is amazing. Much more powerful and more Ferrari - ish.

Thanks for the tip.

SS
more ferrari-ish
sounds good, im willing to try it out
but does this work for a 330i?
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  #108  
By sterns on 03-01-2008, 09:46 PM
Has anyone done this on an E93 ? The trunk is very different behind the taillights from the E92, I opened the taillight trunk panel and the valve is not there. Does anyone know where it is located on the E93?
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  #109  
By Heat00 on 03-10-2008, 08:20 PM
I just came back from an oil change at the dealer, and they didn't say anything about the plug being un-plugged, not to mention they didn't plug it back in either.... sweet....

as soon as I left I popped the trunk to see if they just plugged it in without saying anything and sure enough it was still out.....
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