DIY: 335i Exhaust Sound Mod. Better, and even easier than golf tee mod.

Revlis · 08-28-2007, 06:14 PM

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 simple, easily reversible, and doesn't involve digging under the car. Win-Win!

So a big thanks to whomever it was that clued me in... I like the sound of the dual exhaust all the time without the bypass, but I also like being able to quiet it down if I am going on a long interstate drive... So here's a Barney Style Step by step to a better exhaust sound on demand. :rocks:

--------ETA: Perform at your own risk, Myself and many others have had no ill effects, but you never really know.---------------

Revlis · 08-28-2007, 06:16 PM

Just that freaking easy... 10-15 seconds if you take your time... No Ball bearings, no crawling under the car, just dead simple and sounds great...

Andrew@ET · 08-28-2007, 06:29 PM

i think the ecu records this as a fault in the computer and saves it even tho it wont show up on the dash..

Revlis · 08-28-2007, 06:37 PM

Quote:

Originally Posted by miamibusta69

i think the ecu records this as a fault in the computer and saves it even tho it wont show up on the dash..

OK. Works for me, it can record it to it's silicone hearts content. I had no codes on the dash, all systems check OK. So I'd say we are good to go. it can record that fault all it wants.

My only concern would be if there was some emission device failure or something similar and it traces back to the actuator.

Chesmu · 08-28-2007, 06:38 PM

Quote:

Originally Posted by miamibusta69

i think the ecu records this as a fault in the computer and saves it even tho it wont show up on the dash..

it does....so?

the 325 doesnt even have this valve, right?

i might actually give thsi a try now....

thanx for the great pics.

Revlis · 08-28-2007, 06:41 PM

Quote:

Originally Posted by Chesmu

it does....so?

the 325 doesn;t even have this valve, right?

Far as I know it does not. 335s only I think.

You know I am sure that the ECU does record this as a fault. But I wonder if it really matters?

AU335 · 08-28-2007, 06:41 PM

interesting...

Andrew@ET · 08-28-2007, 06:56 PM

It will record it does it matter id say no. just wanted to make sure you knew the risks between this way and the others.. but if somthing ever happens and they check the comp it will show

Andrew@ET · 08-28-2007, 07:01 PM

my question is do i have one on my e92 328i?

ScheerSpeed · 08-28-2007, 07:07 PM

Quote:

Originally Posted by miamibusta69

my question is do i have one on my e92 328i?

no

only 330 and 335

Chesmu · 08-28-2007, 07:15 PM

Quote:

Originally Posted by Revlis

Far as I know it does not. 335s only I think.

You know I am sure that the ECU does record this as a fault. But I wonder if it really matters?

and 330's

Andrew@ET · 08-28-2007, 07:15 PM

dam .. so my car is as loud as its going to get

Chesmu · 08-28-2007, 07:17 PM

Quote:

Originally Posted by miamibusta69

dam .. so my car is as loud as its going to get

get a gruppe m rep intake.

eleven11 · 08-28-2007, 07:18 PM

Aside from obtaining the 7/32 ball bearing, the Golf Tee mod appears faster, imo. Both, of course, are super quick. I'd prefer the clean ECU, also.

Nonetheless, thanks for the good instructions.

Andrew@ET · 08-28-2007, 07:19 PM

i want the injen ... but they dont even knwow hen it will be released.. and bavdom intake who knows.

eleven11 · 08-28-2007, 07:34 PM

Quote:

Originally Posted by mike328

nice sound on the exhaust and power gain. clips and pictures avalible on this link. pages 1-4 have clips and pictures enjoy

http://www.e90post.com/forums/showthread.php?t=79689

What does this have to do with the Gold Tee mod?

Andrew@ET · 08-28-2007, 07:46 PM

hes shhowing me i can change my exhaust note for very cheap. kinda like a 80 dollar golf tee mod for the 328

imaznumkay · 08-28-2007, 07:50 PM

i used zip ties
but this seems like a good alternative also

Revlis · 08-28-2007, 09:07 PM

Quote:

Originally Posted by miamibusta69

It will record it does it matter id say no. just wanted to make sure you knew the risks between this way and the others.. but if somthing ever happens and they check the comp it will show

You know, I wonder if it'll show a code when it's done the other way? I mean it's still rendering a piece of the car NON-Functional...

Barvia SLV335XI · 08-28-2007, 11:31 PM

is there any bad side affects for this mod?

Chesmu · 08-29-2007, 12:04 AM

Quote:

Originally Posted by Barvia SLV335XI

is there any bad side affects for this mod?

the 325 and 328 don't even have this valve.
it's nothing but sound dampening.

Chesmu · 08-29-2007, 12:05 AM

Quote:

Originally Posted by eleven11

What does this have to do with the Gold Tee mod?

the actuator he's unplugging controls the vacuum that controls this valve.

08-28-2007, 06:14 PM	#1
Revlis Now With 33% MORE Sarcasm Free! 108 Rep 3,446 Posts Drives: 335is Join Date: Feb 2007 Location: Seattle Area, WA iTrader: (0)	DIY: 335i Exhaust Sound Mod. Better, and even easier than golf tee mod. 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 simple, easily reversible, and doesn't involve digging under the car. Win-Win! So a big thanks to whomever it was that clued me in... I like the sound of the dual exhaust all the time without the bypass, but I also like being able to quiet it down if I am going on a long interstate drive... So here's a Barney Style Step by step to a better exhaust sound on demand. :rocks: --------ETA: Perform at your own risk, Myself and many others have had no ill effects, but you never really know.--------------- Attached Images Last edited by Revlis; 08-30-2007 at 03:15 PM.
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08-28-2007, 06:16 PM	#2
Revlis Now With 33% MORE Sarcasm Free! 108 Rep 3,446 Posts Drives: 335is Join Date: Feb 2007 Location: Seattle Area, WA iTrader: (0)	Just that freaking easy... 10-15 seconds if you take your time... No Ball bearings, no crawling under the car, just dead simple and sounds great... __________________ '13 TiAg over Coral, 335is \| DCT \| Prem \| L7 \| Nav/Idrive \| CA \| 19" "-------" A BMW is Just a Car, it doesn't make you smart, handsome, cool, or wealthy. Get over it.
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08-28-2007, 06:29 PM	#3
Andrew@ET Brigadier General 105 Rep 4,039 Posts Drives: Red thing Join Date: May 2007 Location: Earth iTrader: (9)	i think the ecu records this as a fault in the computer and saves it even tho it wont show up on the dash..
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08-28-2007, 06:41 PM	#7
AU335 Colonel 89 Rep 2,439 Posts Drives: 2007 e92 335i Join Date: Mar 2007 Location: Southeast iTrader: (7) Garage List 2007 335i [0.00]	interesting...
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08-28-2007, 06:56 PM	#8
Andrew@ET Brigadier General 105 Rep 4,039 Posts Drives: Red thing Join Date: May 2007 Location: Earth iTrader: (9)	It will record it does it matter id say no. just wanted to make sure you knew the risks between this way and the others.. but if somthing ever happens and they check the comp it will show
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08-28-2007, 07:01 PM	#9
Andrew@ET Brigadier General 105 Rep 4,039 Posts Drives: Red thing Join Date: May 2007 Location: Earth iTrader: (9)	my question is do i have one on my e92 328i?
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08-28-2007, 07:15 PM	#12
Andrew@ET Brigadier General 105 Rep 4,039 Posts Drives: Red thing Join Date: May 2007 Location: Earth iTrader: (9)	dam .. so my car is as loud as its going to get
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08-28-2007, 07:18 PM	#14
eleven11 Captain 38 Rep 877 Posts Drives: -F85 X5M- Join Date: Mar 2007 Location: Derby City iTrader: (0)	Aside from obtaining the 7/32 ball bearing, the Golf Tee mod appears faster, imo. Both, of course, are super quick. I'd prefer the clean ECU, also. Nonetheless, thanks for the good instructions. __________________ 2017 X5M - Current 2014 M5 ZCP - Retired 2011 135i Coupe - Retired 2007 335i Sedan - Retired
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08-28-2007, 07:19 PM	#15
Andrew@ET Brigadier General 105 Rep 4,039 Posts Drives: Red thing Join Date: May 2007 Location: Earth iTrader: (9)	i want the injen ... but they dont even knwow hen it will be released.. and bavdom intake who knows.
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08-28-2007, 07:46 PM	#17
Andrew@ET Brigadier General 105 Rep 4,039 Posts Drives: Red thing Join Date: May 2007 Location: Earth iTrader: (9)	hes shhowing me i can change my exhaust note for very cheap. kinda like a 80 dollar golf tee mod for the 328
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08-28-2007, 07:50 PM	#18
imaznumkay O RLY? 44 Rep 1,103 Posts Drives: '07 335i e90 Join Date: Mar 2006 Location: ze internet iTrader: (2)	i used zip ties but this seems like a good alternative also __________________ bone stock
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08-28-2007, 11:31 PM	#20
Barvia SLV335XI Enlisted Member 1 Rep 46 Posts Drives: 2001 M3 Laguna Seca Blue Join Date: Jul 2007 Location: Portland iTrader: (0) Garage List 2001 BMW M3 [0.00] 2007 BMW 335XI [0.00]	is there any bad side affects for this mod?
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