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General E46 Forum
This is the place to get answers, opinions and everything you need related to your E46 (sedan, coupe, convertible and wagon) BMW!

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Old 06-22-2008, 12:28 AM   #1
323ci Fanatic
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i think euro spec 323's are able to do the golf tee mod

i got reading about exhausts etc and stumbled across the golf tee mod by which you plug up the vaccum that controls the flap in the right exhaust pipe. I saw that it was only for 330's but i had a look at my exhaust anyway. On my right exhaust pipe, inside there is a flap that was open when my car was off and closed when it was idling. Im gona do the mod in the next few days and see how it goes. Heard that doing this will give it a bit of extra sound below 3000rpm before it opens up agian.
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Old 06-22-2008, 02:46 AM   #2
skipole
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Originally Posted by 323ci Fanatic View Post
i got reading about exhausts etc and stumbled across the golf tee mod by which you plug up the vaccum that controls the flap in the right exhaust pipe. I saw that it was only for 330's but i had a look at my exhaust anyway. On my right exhaust pipe, inside there is a flap that was open when my car was off and closed when it was idling. Im gona do the mod in the next few days and see how it goes. Heard that doing this will give it a bit of extra sound below 3000rpm before it opens up agian.
Interesting. I believe 325xi's can also do this mod. FYI, my understanding is that typically the butterfly valve is *open* at idle. At least it is on 330's. Everything I've read suggests it closes around 1200rpm, so either you looked at the valve when you first turned on a cold car or your car's idle is totally out of wack.

This is a stupid, stupid, STUPID modification. That being said, I did it and left it, and the exhaust is slightly louder now. In particular you will notice a mild volume increase in the 1400-2300rpm range.

Still a ridiculous "mod". The only 'advantage' to this mod is when you're driving around in a parking lot it sounds slightly beefier.
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Old 08-18-2009, 04:58 PM   #3
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Originally Posted by skipole View Post
Interesting. I believe 325xi's can also do this mod. FYI, my understanding is that typically the butterfly valve is *open* at idle. At least it is on 330's. Everything I've read suggests it closes around 1200rpm, so either you looked at the valve when you first turned on a cold car or your car's idle is totally out of wack.

This is a stupid, stupid, STUPID modification. That being said, I did it and left it, and the exhaust is slightly louder now. In particular you will notice a mild volume increase in the 1400-2300rpm range.

Still a ridiculous "mod". The only 'advantage' to this mod is when you're driving around in a parking lot it sounds slightly beefier.
I maybe real late getting in on this one but don't people spend big bucks for a better sound??Just my 2 cents worth
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Old 06-22-2008, 02:55 AM   #4
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i dont think its ridiculous at all? It may only increase the sound a little bit but id rather that than nothing and it only took 15 seconds.
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Old 08-18-2009, 05:06 PM   #5
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yep you are really late

anyways, in addition to many many other threads, doing this mod is so easy there is no reason not to... however to the people that believe they can hear a difference must be out of their mind, because it BARELY makes a difference....
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Old 01-27-2010, 12:52 AM   #6
cuz.iknim
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well.........

But you have to admit that you can have both pipe to be brownish color after a while.. instead of one being brown.. lol It evens it out....lol
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