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

skwongr · 11-09-2011, 10:32 PM

This is my first post, first mod and the best ever. Done 10 seconds after work and smile all the way home. Love the sound!!

apocalypse · 11-16-2011, 01:27 PM

Did the mod, really easy stuff. I can hear the louder sound on start up and low revs. It does cause droning on the highway; will give it a few days and see if its going to bug me.

stricklcp · 01-02-2012, 06:21 PM

Great mod! Done in less than 2 min! Thx!

zapingosays · 01-06-2012, 01:17 AM

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?

330i as well

Vesar · 01-06-2012, 09:03 AM

Can i do this to my e92 320i?

DESMO748 · 01-14-2012, 07:00 PM

Stock 2008 E90 335i Sport. Definite change in exhaust note during cold start-up and heavy acceleration. Took it for a 100+ mile drive today--no warning lights; no issues. Likes.

Prablem_Child · 01-17-2012, 05:12 PM

did it to my 2008 stock e90 335xi today im loving the sound

Bmwnsxr · 01-18-2012, 07:16 AM

This sounds great but has anybody had any problem during emission test? I would love to do it also to my new 335xi, but just concern about harming the engine and failing the emissions. Please let me know If i am over thinking this. Thanks guys

deadmn1337 · 01-18-2012, 12:38 PM

Quote:

Originally Posted by Bmwnsxr

This sounds great but has anybody had any problem during emission test? I would love to do it also to my new 335xi, but just concern about harming the engine and failing the emissions. Please let me know If i am over thinking this. Thanks guys

i have had this done on my car for 2 years now approx. No problems to the engine or anything yet. Havent had to do an emission test yet but its so easy that if you are worried you can plug it back in with no problems.

Bmwnsxr · 01-18-2012, 01:11 PM

Thanks for the reassurance. I will do this also.

Prablem_Child · 01-18-2012, 06:59 PM

Quote:

Originally Posted by deadmn1337

i have had this done on my car for 2 years now approx. No problems to the engine or anything yet. Havent had to do an emission test yet but its so easy that if you are worried you can plug it back in with no problems.

+1

Bmwnsxr · 01-18-2012, 07:18 PM

Did do something wrong? I unplugged it and start the car and sounds the same. Hmmmm. Did I skip a step?

deadmn1337 · 01-19-2012, 11:50 AM

was your car cold?

Bmwnsxr · 01-19-2012, 05:17 PM

Quote:

Originally Posted by deadmn1337

was your car cold?

Yea It was probably 40 degree. Will that make a difference?

a10033208 · 01-19-2012, 10:42 PM

is it fit the e93 335i??

deadmn1337 · 01-20-2012, 03:08 PM

[QUOTE=Bmwnsxr;11183596]Yea It was probably 40 degree. Will that make a difference?[/QUOTE
the mod basically makes your car use both exhaust pipes at start up instead of closing one. So from a cold start your car will sound louder but in general it doesn't really make a big sound difference while driving when the car is warmed up. It isn't a very big difference but its there.

Hartge · 01-23-2012, 04:16 PM

hmm interesting

DESMO748 · 01-23-2012, 04:20 PM

Quote:

Originally Posted by DESMO748

Stock 2008 E90 335i Sport. Definite change in exhaust note during cold start-up and heavy acceleration. Took it for a 100+ mile drive today--no warning lights; no issues. Likes.

Still no issues. Still sounds great.

ArsE92 · 01-29-2012, 02:58 PM

Just done this, thanks guys. Really easy to do, even in the dark.

Looking forward to the drive to work in the morning!

Josh5442 · 01-30-2012, 03:54 PM

Just did it on my n55 e92 335i....haven't driven it yet - cold start video.

Abenitez · 02-09-2012, 09:39 PM

Any long term issues? I had a 335i and when I did this, I felt as if the reaction of the car slowed down. Just my $0.02. Anyone else?

austin335i · 02-10-2012, 06:56 PM

The dealer will see that you did this (not that they care) but it throws a code with EGR or something like that. Just shows that it is malfunctioning, though you won't have a CEL of any sort.

I actually appreciate the quiet start and if all our cars had this mod done from the factory, I'd be the first to reverse. Maybe I'm getting old :P

11-09-2011, 10:32 PM	#485
skwongr Registered 0 Rep 3 Posts Drives: BMW 335i Sport Join Date: Nov 2011 Location: Oklahoma iTrader: (0)	This is my first post, first mod and the best ever. Done 10 seconds after work and smile all the way home. Love the sound!!
	Appreciate 0 Quote

11-16-2011, 01:27 PM	#486
apocalypse Private First Class 14 Rep 143 Posts Drives: 2021 M340i xDrive Join Date: Sep 2011 Location: GTA iTrader: (1)	Did the mod, really easy stuff. I can hear the louder sound on start up and low revs. It does cause droning on the highway; will give it a few days and see if its going to bug me.
	Appreciate 0 Quote

01-02-2012, 06:21 PM	#487
stricklcp fair to partly cloudy 0 Rep 8 Posts Drives: 2007 e90 335i Join Date: Dec 2011 Location: United States iTrader: (0)	Great mod! Done in less than 2 min! Thx!
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01-06-2012, 09:03 AM	#489
Vesar Lieutenant 71 Rep 486 Posts Drives: 320i Ε92 M-Sport Join Date: May 2011 Location: Thessaloniki, Greece iTrader: (0) Garage List 2007 BMW 320i [10.00]	Can i do this to my e92 320i? __________________ GP Thunder 8500k AE \| Yellow Fogs \| Plasti Dipped Badge \| Matte Grilles \| LED Interior \| Carbon/Black Emblems \| ///M Sport Package
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01-14-2012, 07:00 PM	#490
DESMO748 Private First Class 7 Rep 132 Posts Drives: e90 N54 Join Date: Dec 2011 Location: SF iTrader: (0)	Stock 2008 E90 335i Sport. Definite change in exhaust note during cold start-up and heavy acceleration. Took it for a 100+ mile drive today--no warning lights; no issues. Likes.
	Appreciate 0 Quote

01-17-2012, 05:12 PM	#491
Prablem_Child Private First Class 11 Rep 146 Posts Drives: f06 m6 Join Date: Oct 2011 Location: New York iTrader: (0)	did it to my 2008 stock e90 335xi today im loving the sound
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01-18-2012, 07:16 AM	#492
Bmwnsxr New Member 0 Rep 9 Posts Drives: 335 xi white Join Date: Jan 2012 Location: Mount Airy iTrader: (0)	This sounds great but has anybody had any problem during emission test? I would love to do it also to my new 335xi, but just concern about harming the engine and failing the emissions. Please let me know If i am over thinking this. Thanks guys
	Appreciate 0 Quote

01-18-2012, 01:11 PM	#494
Bmwnsxr New Member 0 Rep 9 Posts Drives: 335 xi white Join Date: Jan 2012 Location: Mount Airy iTrader: (0)	Thanks for the reassurance. I will do this also.
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01-18-2012, 07:18 PM	#496
Bmwnsxr New Member 0 Rep 9 Posts Drives: 335 xi white Join Date: Jan 2012 Location: Mount Airy iTrader: (0)	Did do something wrong? I unplugged it and start the car and sounds the same. Hmmmm. Did I skip a step?
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01-19-2012, 11:50 AM	#497
deadmn1337 Captain 39 Rep 656 Posts Drives: 2016 EB 435i Join Date: Mar 2010 Location: Long Beach iTrader: (11)	was your car cold?
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01-19-2012, 10:42 PM	#499
a10033208 New Member 20 Rep 19 Posts Drives: bmw 335i coupe Join Date: Mar 2011 Location: california iTrader: (0)	is it fit the e93 335i??
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01-20-2012, 03:08 PM	#500
deadmn1337 Captain 39 Rep 656 Posts Drives: 2016 EB 435i Join Date: Mar 2010 Location: Long Beach iTrader: (11)	[QUOTE=Bmwnsxr;11183596]Yea It was probably 40 degree. Will that make a difference?[/QUOTE the mod basically makes your car use both exhaust pipes at start up instead of closing one. So from a cold start your car will sound louder but in general it doesn't really make a big sound difference while driving when the car is warmed up. It isn't a very big difference but its there.
	Appreciate 0 Quote

01-23-2012, 04:16 PM	#501
Hartge Lieutenant Colonel 57 Rep 1,849 Posts Drives: 330d Sport Join Date: Oct 2010 Location: Sheffield iTrader: (0)	hmm interesting __________________
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01-29-2012, 02:58 PM	#503
ArsE92 First Lieutenant 23 Rep 396 Posts Drives: E92 335i SE Join Date: Nov 2011 Location: North-West UK iTrader: (1)	Just done this, thanks guys. Really easy to do, even in the dark. Looking forward to the drive to work in the morning!
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01-30-2012, 03:54 PM	#504
Josh5442 Enlisted Member 7 Rep 36 Posts Drives: 16 RAM Join Date: Jan 2012 Location: Boston iTrader: (0)	Just did it on my n55 e92 335i....haven't driven it yet - cold start video.
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02-09-2012, 09:39 PM	#505
Abenitez Second Lieutenant 23 Rep 197 Posts Drives: Black Sapphire E92 335is 2012 Join Date: Dec 2010 Location: Miami iTrader: (1) Garage List 2012 335is [0.00]	Any long term issues? I had a 335i and when I did this, I felt as if the reaction of the car slowed down. Just my $0.02. Anyone else? __________________ 2012 E92 335is -M Sport Package- 19in M Rims- Black Sapphire Metallic/ Coral Red / Glaciar trim, Rear diffuser. Black Grille, 5% window tint. K&N drop in Air filter. Scarlett
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02-10-2012, 06:56 PM	#506
austin335i Banned 6 Rep 121 Posts Drives: E90 2008 BMW 335ia Join Date: Sep 2010 Location: Los Angeles iTrader: (4)	The dealer will see that you did this (not that they care) but it throws a code with EGR or something like that. Just shows that it is malfunctioning, though you won't have a CEL of any sort. I actually appreciate the quiet start and if all our cars had this mod done from the factory, I'd be the first to reverse. Maybe I'm getting old :P
	Appreciate 0 Quote

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