Golf T mod

rickyjones1209 · 07-22-2012, 12:07 PM

Can someone remind exactly what this is please. What it does and how it works? And how to do?

I remember reading something about it many months ago before I bought the car but my laptop is fooked and can't search for threads on iPad.

Thanks guys

B005T3D-G · 07-22-2012, 12:13 PM

Basically it's removing a vacuum hose that attaches to the flap in the left hand tailpipe. Remove the hose, stuck a golf tee in it and secure and tie it off somewhere safe. Gives you a little bit more volume when cruising around at low rpms and doing it this way doesn't throw up any codes. If you have a JB4 you can do it via the steering wheel without messing about under the car but it's a really quick and easy mod if that's your thing. There is a way of doing it via the left taillight hatch where you unplug a connector but that will throw a code.

rickyjones1209 · 07-22-2012, 12:34 PM

So pull the hose off, put a golf T in the hose and tie it out of the way? And that's it.

So leave the hole in the exhaust open?

May as well try it for free and see what difference it makes

B005T3D-G · 07-22-2012, 03:13 PM

Sorry, yes you should cover up the nipple on the exhaust actuator to prevent dirt/water getting in. But basically that's it. I just fitted the BMW perf exhaust, car sounds like it should now

creepy coupe · 07-23-2012, 03:59 AM

Don't even need to bother with a golf tee. Just fold the pipe double and tie off.

hobo mofo · 07-23-2012, 04:19 AM

Is it a big difference in noise?

creepy coupe · 07-23-2012, 04:22 AM

Quote:

Originally Posted by hobo mofo

Is it a big difference in noise?

Not massive, just deeper.

Falmouthboy · 07-23-2012, 04:55 AM

Quote:

Originally Posted by creepy coupe

No massive, just deeper.

And only under light throttle input - otherwise the second pipe is open in any case.

hobo mofo · 07-23-2012, 05:54 AM

You would expect a 325i to have a nice exhaust note but mine seems really quiet compared to my previous car. (R32)

nicktyler · 07-23-2012, 06:08 AM

It's also a lot louder when cruising at motorway speeds though. I tried it by pulling the plug because the flap was clanging on cold start. Flap was still quite loud and it droned on teh motorway so I just replaced the plug.

q_jonblaze · 07-23-2012, 07:57 AM

Quote:

Originally Posted by hobo mofo

You would expect a 325i to have a nice exhaust note but mine seems really quiet compared to my previous car. (R32)

dont tghink this mod applies to e90+ 325i models....330 onwards i believe.

happy to be proven wrong(which would mean that i would do it to mine.lol)

parrp · 07-23-2012, 08:47 AM

If this mod hasnt been done when should the 2nd pipe be open?

Just wondering as when i switch the car on the 2nd pipe is open. Is it only closed when driving and then opens when you hit the loud peddle?

doughboy · 07-23-2012, 08:57 AM

Quote:

Originally Posted by parrp

If this mod hasnt been done when should the 2nd pipe be open?

Just wondering as when i switch the car on the 2nd pipe is open. Is it only closed when driving and then opens when you hit the loud peddle?

It is open when not running of course, then on COLD start it will close immediately and stay closed for about 30 seconds or so to keep it quiet on fast idle, then it opens.

Then as you pull away it closes and stays closed at light throttle all the time. Not super light granny throttle, but just general driving.

But even on a light throttle it will still open at about 3.5krpm-ish.

It can be boomy cruising, model dependant, but give it a try no harm done.

Boz335i · 07-23-2012, 09:21 AM

You can just remove the connector in the boot, this is the easiest way.

creepy coupe · 07-23-2012, 09:28 AM

Quote:

Originally Posted by Boz335i

You can just remove the connector in the boot, this is the easiest way.

I thought this way threw up an error message?

Boz335i · 07-23-2012, 10:44 AM

Quote:

Originally Posted by creepy coupe

I thought this way threw up an error message?

Nothing on the dashboard. You do get a code with a code reader, something like "Fume Flap open".
As long as you plug it back in before a service then there will be no problems, I think they will just clear the code, which has happened for me before.

Since fitting the performance exhaust, I don't bother unplugging it anymore as it's just a bit too loud on cold start.

doughboy · 07-23-2012, 11:57 AM

Quote:

Originally Posted by Boz335i

....As long as you plug it back in before a service then there will be no problems....

Agree, but even if you left it uplugged, the worst they would do (if they could even be bothered) is plug it back in again for you.

The hidden code is inconsequential, and in my mind its easier to unplug it quickly (and while standing up) in a dry luggage compartment than scrabble around on the floor under a filthy wet car messing with the exhaust.

Quote:

Since fitting the performance exhaust, I don't bother unplugging it anymore as it's just a bit too loud on cold start.

Ahh, didn't know the PE had the flapper!

Boz335i · 07-23-2012, 04:42 PM

Quote:

Originally Posted by doughboy

Agree, but even if you left it uplugged, the worst they would do (if they could even be bothered) is plug it back in again for you.

I remember reading this thread a while ago where this fella took his car in and forgot to remove the golf-tee. He got shafted for $130.

http://www.bimmerfest.com/forums/sho...d.php?t=277394

doughboy · 07-23-2012, 04:58 PM

Quote:

Originally Posted by Boz335i

I remember reading this thread a while ago where this fella took his car in and forgot to remove the golf-tee. He got shafted for $130.

http://www.bimmerfest.com/forums/sho...d.php?t=277394

But that's even more reason to just unplug the electrical plug in the boot. Then you could just say "eh, what plug?, must have fell undone, nothing to do with me."

parrp · 07-24-2012, 04:46 AM

Quote:

Originally Posted by doughboy

It is open when not running of course, then on COLD start it will close immediately and stay closed for about 30 seconds or so to keep it quiet on fast idle, then it opens.

Then as you pull away it closes and stays closed at light throttle all the time. Not super light granny throttle, but just general driving.

But even on a light throttle it will still open at about 3.5krpm-ish.

It can be boomy cruising, model dependant, but give it a try no harm done.

I checked mine last night and on cold start the second pipe doesnt close at all. I've not done the mod but did notice the second pipe is slighty loose. Also after a drive i checked and the pipe was wide open. Broken?

doughboy · 07-24-2012, 05:34 AM

paarp,

Sorry I didn't spot that you have a 330i, my comments were about the 335i, they're not the same exhaust system and the flap works in different way.

IIRC my 06 E90 330i flap didn't close on cold start either.

I have noticed in the past following E46 330i's that the flap shuts when they pull away, so you'll never see it your self.

07-22-2012, 12:07 PM	#1
rickyjones1209 First Lieutenant 40 Rep 394 Posts Drives: 2019 M2 Competition Join Date: Jan 2012 Location: Cheshire iTrader: (1)	Golf T mod Can someone remind exactly what this is please. What it does and how it works? And how to do? I remember reading something about it many months ago before I bought the car but my laptop is fooked and can't search for threads on iPad. Thanks guys __________________ f87 M2 Competition f36 435d M Sport e92 335i M Sport
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07-22-2012, 12:13 PM	#2
B005T3D-G Class Leading Reprobate 15 Rep 407 Posts Drives: Impreza STi - E92 335i (56) Join Date: Oct 2011 Location: Mintlaw, Scotland iTrader: (0) Garage List 2006 BMW 335i SE [0.00]	Basically it's removing a vacuum hose that attaches to the flap in the left hand tailpipe. Remove the hose, stuck a golf tee in it and secure and tie it off somewhere safe. Gives you a little bit more volume when cruising around at low rpms and doing it this way doesn't throw up any codes. If you have a JB4 you can do it via the steering wheel without messing about under the car but it's a really quick and easy mod if that's your thing. There is a way of doing it via the left taillight hatch where you unplug a connector but that will throw a code. __________________ E92 335i \| 6 Speed manual \| BMS 4xLED Halo Bulbs \| JB4 (waiting to be installed) \| BMW Performance Gloss Black Grills \| BMW Performance Exhaust \| Smoked side Repeaters Aero Front Lip \| M3 Lip Spoiler \|19" Cades Tyrus 'Gunmetal' with polished lips \| Falken FK452 Rubber ........... More to come
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07-22-2012, 12:34 PM	#3
rickyjones1209 First Lieutenant 40 Rep 394 Posts Drives: 2019 M2 Competition Join Date: Jan 2012 Location: Cheshire iTrader: (1)	So pull the hose off, put a golf T in the hose and tie it out of the way? And that's it. So leave the hole in the exhaust open? May as well try it for free and see what difference it makes __________________ f87 M2 Competition f36 435d M Sport e92 335i M Sport
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07-22-2012, 03:13 PM	#4
B005T3D-G Class Leading Reprobate 15 Rep 407 Posts Drives: Impreza STi - E92 335i (56) Join Date: Oct 2011 Location: Mintlaw, Scotland iTrader: (0) Garage List 2006 BMW 335i SE [0.00]	Sorry, yes you should cover up the nipple on the exhaust actuator to prevent dirt/water getting in. But basically that's it. I just fitted the BMW perf exhaust, car sounds like it should now __________________ E92 335i \| 6 Speed manual \| BMS 4xLED Halo Bulbs \| JB4 (waiting to be installed) \| BMW Performance Gloss Black Grills \| BMW Performance Exhaust \| Smoked side Repeaters Aero Front Lip \| M3 Lip Spoiler \|19" Cades Tyrus 'Gunmetal' with polished lips \| Falken FK452 Rubber ........... More to come
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07-23-2012, 03:59 AM	#5
creepy coupe Lieutenant General 1823 Rep 13,043 Posts Drives: BMW M340I G20 Join Date: Aug 2007 Location: UK iTrader: (2) Garage List 2015 BMW 435d [0.00] 2009 335i [0.00]	Don't even need to bother with a golf tee. Just fold the pipe double and tie off.
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07-23-2012, 04:19 AM	#6
hobo mofo Captain 26 Rep 639 Posts Drives: 2007 325i e90 Join Date: Apr 2012 Location: London iTrader: (1)	Is it a big difference in noise?
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07-23-2012, 05:54 AM	#9
hobo mofo Captain 26 Rep 639 Posts Drives: 2007 325i e90 Join Date: Apr 2012 Location: London iTrader: (1)	You would expect a 325i to have a nice exhaust note but mine seems really quiet compared to my previous car. (R32)
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07-23-2012, 06:08 AM	#10
nicktyler Major 33 Rep 1,271 Posts Drives: 335i (sadly gone) Join Date: Jan 2012 Location: Essex iTrader: (3) Garage List 2007 BMW E92 335i [0.00]	It's also a lot louder when cruising at motorway speeds though. I tried it by pulling the plug because the flap was clanging on cold start. Flap was still quite loud and it droned on teh motorway so I just replaced the plug.
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07-23-2012, 08:47 AM	#12
parrp Private First Class 8 Rep 143 Posts Drives: 3er Join Date: Oct 2011 Location: UK iTrader: (0)	If this mod hasnt been done when should the 2nd pipe be open? Just wondering as when i switch the car on the 2nd pipe is open. Is it only closed when driving and then opens when you hit the loud peddle?
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07-23-2012, 09:21 AM	#14
Boz335i Captain 28 Rep 636 Posts Drives: E92 M3 DCT Join Date: Jul 2011 Location: Buckingham iTrader: (5)	You can just remove the connector in the boot, this is the easiest way.
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07-24-2012, 05:34 AM	#21
doughboy Major General 1578 Rep 8,971 Posts Drives: 2018 M2 Comp 6MT Join Date: Jan 2009 Location: UK iTrader: (2)	paarp, Sorry I didn't spot that you have a 330i, my comments were about the 335i, they're not the same exhaust system and the flap works in different way. IIRC my 06 E90 330i flap didn't close on cold start either. I have noticed in the past following E46 330i's that the flap shuts when they pull away, so you'll never see it your self.
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