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      12-11-2010, 09:51 AM   #23
SKY_BIMMERS
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Quote:
Originally Posted by al2011x6 View Post
I noticed the smoke was coming out only out of the driver's side exhaust on my new X6 and when I took it to BMW they told me the passenger side has a valve that only opens the pipe when the car is going up hills or under high acceleration. He also showed me if you press this metal stick under the exhaust smoke starts coming out and the sound is really nice. So here are my questions. Did anyone notice their x6 has smoke coming out only on the driver's side? And second has anyone tried to to manually put a metal clamp on the left side so it is always open. I want to do this so the smoke comes out evenly and I did notice a better sound, however I am afraid of damaging something. Thoughts
can u take a video of the sound ? so we can hear it!
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      12-11-2010, 10:03 AM   #24
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Originally Posted by MYX6 View Post
Look for the torque"lost" somewhere else. As difficult the gases go out(because of silencers and cats.) as bigger is the back presure, as harder is the work of turbo and the power loses are bigger. Thats why the sports cars are noisy using FREEFLOW EXHAUST. One of the reasons HAMANN exhaust is for export onely(of EU) is the hi level of noise.
P.S. If you fill your exhaust with potatos the torque must grow following your logic
So sorry, I do not understand what you trying to say.
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      12-11-2010, 10:36 AM   #25
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Please ,they told you exactly "WHAT"? I am driving my car with the valve open for 4 months and I made about 5-6 tkm. It is perfect
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      12-11-2010, 10:41 AM   #26
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My exhaust is complete modified. I just attach some pics. in "NEW EXHAUST E71 35i"
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      12-11-2010, 10:41 AM   #27
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Have you drive the same car before the change?
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      12-11-2010, 10:48 AM   #28
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I have my first BMW in 1992 and since then I am driving and loving BMW. The X6 I have since 08.2009 and I know the car even better then my wife.
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      12-11-2010, 10:51 AM   #29
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Like this I made it
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      12-11-2010, 11:04 AM   #30
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Originally Posted by Henry1515 View Post
Have you drive the same car before the change?
Yes long enough to know it good
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      12-12-2010, 03:16 AM   #31
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I am now pretty good in keeping the valve open using a zip tie every once in a while. I actually feel like car runs just a little bit better with it open.
I think I know where the people who said they lost low end torque are coming from, it's just because the exhaust sound is louder they feel like they are not going as fast as exhaust sounds. Turn up the music and you will see the car is actually running better!
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      12-12-2010, 03:34 AM   #32
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Originally Posted by watoowatoo View Post
I am now pretty good in keeping the valve open using a zip tie every once in a while. I actually feel like car runs just a little bit better with it open.
I think I know where the people who said they lost low end torque are coming from, it's just because the exhaust sound is louder they feel like they are not going as fast as exhaust sounds. Turn up the music and you will see the car is actually running better!
BRAVO, very good logic, but this means they do not know the own car good.
This is not ''IN VITRO'' it is just a"chimney"
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      12-12-2010, 04:51 AM   #33
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Originally Posted by MYX6 View Post
My exhaust is complete modified. I just attach some pics. in "NEW EXHAUST E71 35i"
Please compare apple to apple, since your exhaust is completely modified how can you said it is better to have the valve removed. We are talking about the effect of removing the valve with stock exhaust and not modified exhaust. Hello!
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      12-12-2010, 04:53 AM   #34
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Originally Posted by MYX6 View Post


BRAVO, very good logic, but this means they do not know the own car good.
This is not ''IN VITRO'' it is just a"chimney"
VERY RUDE!!!!!!
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      12-12-2010, 04:56 AM   #35
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Quote:
Originally Posted by MYX6 View Post


BRAVO, very good logic, but this means they do not know the own car good.
This is not ''IN VITRO'' it is just a"chimney"
This forum is for people to share and learn so since you are so good why joined this forum since you call people chimney... Very rude. if you come here I will cane you.
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      12-12-2010, 07:47 AM   #36
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Quote:
Originally Posted by Henry1515 View Post
This forum is for people to share and learn so since you are so good why joined this forum since you call people chimney... Very rude. if you come here I will cane you.
DEAR Henry,
I copare exhaust with chimney( as something wich is taking the smoke out of the hause). I respect everybody just because you are BMW fan . If you read good what I wrote- I sad that I first did the valve and later the rest.
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      12-12-2010, 02:07 PM   #37
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Quote:
Originally Posted by Henry1515 View Post
This forum is for people to share and learn so since you are so good why joined this forum since you call people chimney... Very rude. if you come here I will cane you.
Hello again Mr.Henry
I hope You get what I mean. The exhaust is not so complicate technic, so I compare it with chimney.FINALY WE ARE ALL SICK OF ONE SICKNES CALLED............................................ ..................................BMW
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      12-14-2010, 11:58 AM   #38
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I tried the zip-tie method few days ago. I can notice the sound being noticeably louder, especially when starting up the engine.

But personally I think my N55 doesn't sound a good as N54. Maybe it's just me
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      12-14-2010, 08:29 PM   #39
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Thumbs up

I just completed this mod and did a nice 30 mile drive. I first read the forums for the 335I and 135I guys, I do not know what they are thinking that if you plug the vacuum line that it will open the valve. I don't own a 335I but on the X635I the vacuum pressure is what opens the valve. So if you plug it the valve will never open. I did keep it open by wrapping a wire around it and pulling it open and then securing the wire. It won't melt like a zip tie and it is easy to take off. I can say it does sound better. Not quite as much as a $3,000 exhaust system. But for free its worth every penny. I did not notice any loss of low end torque which is common with free flow exhausts, and I do feel the car ran better. One other note is on my loop which I do daily to work, my MPG was up...still to early to tell on that for sure.
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      12-18-2010, 09:50 PM   #40
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Quote:
Originally Posted by X6exy View Post
I just completed this mod and did a nice 30 mile drive. I first read the forums for the 335I and 135I guys, I do not know what they are thinking that if you plug the vacuum line that it will open the valve. I don't own a 335I but on the X635I the vacuum pressure is what opens the valve. So if you plug it the valve will never open. I did keep it open by wrapping a wire around it and pulling it open and then securing the wire. It won't melt like a zip tie and it is easy to take off. I can say it does sound better. Not quite as much as a $3,000 exhaust system. But for free its worth every penny. I did not notice any loss of low end torque which is common with free flow exhausts, and I do feel the car ran better. One other note is on my loop which I do daily to work, my MPG was up...still to early to tell on that for sure.
I belive your fuel spending is a bit up just because your curiosity- how is my car now, after the change. You may also enjoy the sound and push harder the gaspedal in any posible moment. Later all will be on place, maybe even less and less (fuel spending). It is the same when you have a new girlfrend.
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      12-19-2010, 09:16 AM   #41
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This is one of the most confusing threads I've ever read.
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      12-20-2010, 03:46 AM   #42
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Quote:
Originally Posted by kgclark View Post
This is one of the most confusing threads I've ever read.
Fully agree.
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      12-23-2010, 01:58 PM   #43
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idea

You do not have any idea WHAT WE ARE TALKING ABOUT. YOU NEVER MAKE NOTHING TO YOUR CARS, THATS WHAY YOU CANNOT FOLLOW THE LOGIC AND FEELING. BETER TAKE LOOK TO YOUR FAVORIT TV SERIAL.
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      04-05-2016, 09:46 AM   #44
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X6 Exhaust

Yes, I realized the same thing , at first I keep ignoring it ... yesterday I saw it again ... I figured I would Google it ... thanks for that info because I was getting worried that something may be wrong. Though it wasn't something I saw all the time ...
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