Exhaust (flap?) question on a 335is

mark896 · 03-11-2014, 06:29 PM

I was wondering if the golf tee mod, or really, the exhaust as a whole, works the same way on a 335is as it does on a 335i. When I start my 335is from cold, it seems that exhaust only comes out of the passenger side pipe. The car sounds great though.

Would disconnecting the little harness in the trunk produce the same results as it does with the 335i and keep both open at the same time?

Mark

BEAR-AvHistory · 03-11-2014, 06:42 PM

Yes it works the same, just disconnect the plug.

techwhiz · 03-11-2014, 06:52 PM

Don't disconnect the plug. You will get fault codes.
The correct method is to plug the hose or crimp it on some fashion.
You can use a zip tie to hold it after you pinch it.
You can also use a surgical hose clamp.

JAL0988 · 03-12-2014, 08:48 AM

Quote:

Originally Posted by techwhiz

Don't disconnect the plug. You will get fault codes.
The correct method is to plug the hose or crimp it on some fashion.
You can use a zip tie to hold it after you pinch it.
You can also use a surgical hose clamp.

No offense man but that is ill-advised. Disconnecting the plug is a much easier and reversible way.

Stucks · 03-12-2014, 08:57 AM

Quote:

Originally Posted by JAL0988

No offense man but that is ill-advised. Disconnecting the plug is a much easier and reversible way.

Ive had my flap hose plugged since 2010. No issues and if i still ran the stock exhaust with the flap, it can be returned to stock operation in a couple of minutes

techwhiz · 03-12-2014, 01:15 PM

Quote:

Originally Posted by JAL0988

No offense man but that is ill-advised. Disconnecting the plug is a much easier and reversible way.

Either way is reversible.
The way the dealer installs a performance exhaust is not to disconnect the plug but to crip or otherwise obstruct the hose.

Unplugging the pump will throw a shadow code or sometimes the SES light.
Blocking the hose throws no codes.

iturbo_bmw · 03-12-2014, 01:39 PM

unplugging it from the trunk is just easier..

and who cares about that one stupid code..

cw_itr_805 · 03-12-2014, 06:28 PM

Yes it works the same, my dad did this with his old 135i w/sport exhaust as well. My IS sounded noticeably louder around town and a good deal louder on a cold startup.

techwhiz · 03-12-2014, 07:50 PM

Quote:

Originally Posted by iturbo_bmw

unplugging it from the trunk is just easier..

and who cares about that one stupid code..

Actually, I use a surgical hose clamp inside the panel where the plug is located.
$2.00, no codes and as easy as unplugging.

YMMV.

mark896 · 03-13-2014, 03:28 PM

Quote:

Originally Posted by techwhiz

Actually, I use a surgical hose clamp inside the panel where the plug is located.
$2.00, no codes and as easy as unplugging.

YMMV.

Can you expand on what you did exactly?

MidwestGolfBum · 03-13-2014, 03:57 PM

Quote:

Originally Posted by mark896

Can you expand on what you did exactly?

Look under car on drivers side exhaust, find the vac hose, take surgical hose clamp, clamp hose, drive.

It's really about the easiest "mod" you can do.

techwhiz · 03-13-2014, 04:33 PM

Quote:

Originally Posted by mark896

Can you expand on what you did exactly?

There is an access port inside the trunk, no need to go under the car.
Buy this or something like it:
http://www.ebay.com/itm/TRC2532-Red-...item27d9142407

Get it diagonally over the hose then clamp tight.
Use a piece of string so you don't drop it into the hole.

Done.

mark896 · 03-14-2014, 03:32 PM

Cool.

LMB335IS · 03-14-2014, 06:35 PM

Unplug the damn thing. Takes all of 10 seconds. If your stealership busts your balls over a flapper code you have bigger problems.

03-11-2014, 06:29 PM	#1
mark896 Warrant Officer 50 Rep 459 Posts Drives: 2011 E92 335is Join Date: Dec 2011 Location: Alabama iTrader: (0)	Exhaust (flap?) question on a 335is I was wondering if the golf tee mod, or really, the exhaust as a whole, works the same way on a 335is as it does on a 335i. When I start my 335is from cold, it seems that exhaust only comes out of the passenger side pipe. The car sounds great though. Would disconnecting the little harness in the trunk produce the same results as it does with the 335i and keep both open at the same time? Mark
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03-11-2014, 06:42 PM	#2
BEAR-AvHistory 2020 Z4 M40i - 2022 M4C Convt 3174 Rep 5,264 Posts Drives: 2020 Z4 M40i - 2022 M4C Convrt Join Date: Jun 2011 Location: Raleigh, NC - OIB, NC iTrader: (0) Garage List 1965 COBRA (FFR rep ... [8.57] 2023 Jeep Wrangler ... [4.75] 2009 Yamaha V-Star [0.00] Cars 2-BMW, 2-FORD, ... [0.00] 2023 Ford Expeditio ... [0.00] 2020 Z4 M40i [10.00] 2022 BMW M4C [7.25] 1998 FORD Ranger 4X4 [0.00]	Yes it works the same, just disconnect the plug. __________________ Kevin Dravit Gray, Black Leather, Moonlight Roof, Red Calipers 2022 M4C - 2020 Z4 M40i - 2023 FORD Expedition XLT Max 4X4 400BHP - 2009 V-Star - 1998 Ranger 4X4 5MT - 1965 Cobra (R) 5MT - 2023 Jeep Wrangler Sport S 6MT
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03-11-2014, 06:52 PM	#3
techwhiz Colonel 458 Rep 2,972 Posts Drives: e90 335i Sedan - Arctic Join Date: Feb 2012 Location: Bay Area, Ca iTrader: (4)	Don't disconnect the plug. You will get fault codes. The correct method is to plug the hose or crimp it on some fashion. You can use a zip tie to hold it after you pinch it. You can also use a surgical hose clamp. __________________ Arctic Metallic\CF Splitters, Spoiler, Mirror Covers\LED Tails\LSD\Tinted\Coded\Apex Square SM10-19"\LED Angel Eyes\Gloss Black Grill\Integrated V1 & Galaxy Tab\M-Performance Brakes\Cobb Tuned\xHP Flash\Resonator Removed and -> is your friend.
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03-12-2014, 01:39 PM	#7
iturbo_bmw Major 96 Rep 1,101 Posts Drives: 335i, 530i Join Date: Oct 2012 Location: San Jose iTrader: (0)	unplugging it from the trunk is just easier.. and who cares about that one stupid code..
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03-12-2014, 06:28 PM	#8
cw_itr_805 Private 7 Rep 59 Posts Drives: 2015 228i M-sport Join Date: Mar 2014 Location: Cleveland, OH iTrader: (0)	Yes it works the same, my dad did this with his old 135i w/sport exhaust as well. My IS sounded noticeably louder around town and a good deal louder on a cold startup.
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03-14-2014, 03:32 PM	#13
mark896 Warrant Officer 50 Rep 459 Posts Drives: 2011 E92 335is Join Date: Dec 2011 Location: Alabama iTrader: (0)	Cool.
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03-14-2014, 06:35 PM	#14
LMB335IS Sua Sponte 1318 Rep 2,863 Posts Drives: 2013 LMB 335is Join Date: May 2008 Location: FOB FL iTrader: (21) Garage List 2013 BMW 335is [8.84]	Unplug the damn thing. Takes all of 10 seconds. If your stealership busts your balls over a flapper code you have bigger problems. __________________ 335is/DCT-M3 GTS software-M3 drivetrain-M3 GWS-KOMBI-DSC-SZL/MHD/BQ Tuning IG@ClustersandCoding
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