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      04-18-2011, 06:54 PM   #1
carlili4190
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Aftermarket Exhausts?

Were there any aftermarket exhausts for the old X3's?
Anyone know if there are plans from any manufacturers to make some?
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      11-30-2011, 01:29 PM   #2
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Quote:
Originally Posted by carlili4190 View Post
Were there any aftermarket exhausts for the old X3's?
Anyone know if there are plans from any manufacturers to make some?
I am also interested in this. I know Dinan made one for the E83 but have not said anything about the F25 yet. Let me know if you find anything out.
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      11-30-2011, 02:33 PM   #3
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AC Schnitzer has a full upgrade package for the X3, but I'm not sure if you can purchase the exhaust system alone...or if the package is even available yet.
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      11-30-2011, 09:28 PM   #4
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Quote:
Originally Posted by juddholland View Post
AC Schnitzer has a full upgrade package for the X3, but I'm not sure if you can purchase the exhaust system alone...or if the package is even available yet.
If Schnitzer makes it, it'll be expensive. I priced out some of their non-forged Type VIII wheels and they wanted $3,300!
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      11-30-2011, 11:06 PM   #5
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Nothing out on market yet. I doubt there will be much for support on this.

Those with the N55 will be able to benefit from the FlapCan available on the JB stage 2 tune when it comes out. Makes it sound deeper...
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      12-01-2011, 08:09 AM   #6
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Quote:
Originally Posted by Lotus7 View Post
Or you can just disconnect and plug the vacuum line on the existing 35i Dual Path exhaust flap valve controller, which effectively bypasses what little muffler restriction that exists in the OEM muffler, and gives you a direct system all the time rather than only at high-boost conditions.

Doesn't increase the maximum engine power, (since the flap valve opens anyway at full throttle) but does make the car sound louder and deeper all the time for absolutely no cost, if that's what you're looking for.
Wow this is an old post haha. Anyways this would be the "golf tee" mod no? Does anyone know how to do it
For the x3 yet?
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      12-01-2011, 08:15 AM   #7
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Quote:
Originally Posted by mdtmem View Post
I am also interested in this. I know Dinan made one for the E83 but have not said anything about the F25 yet. Let me know if you find anything out.
If Dinan made performance products for the E83, I think we will definitely see products for the F25, as the turbo is much easier to get gains from than the naturally aspirated inline 6. I would think things would start trickling out as products come out for the 335 and 535.
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      12-02-2011, 11:41 AM   #8
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do you just pull out the line from servo? what if you just pinch the line?
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      12-12-2011, 11:29 AM   #9
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Any pictures of this mod?
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      12-12-2011, 02:35 PM   #10
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That's a illustration.

I was hoping for a photograph... just because I like to be difficult.

Quote:
Originally Posted by Lotus7 View Post
Did you miss post #9?
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      12-12-2011, 04:31 PM   #11
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Quote:
Originally Posted by lbjgh View Post
That's a illustration.

I was hoping for a photograph... just because I like to be difficult.
its not.. the minute you look under your x3, you'll see the tube right beside the muffler.
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      01-08-2012, 09:52 AM   #12
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"Golf Tee Mod"

Instead of messing with the vacuum line you can also just unplug the solenoid cable in the cargo area like the 335i guys do. This is what we did to our cars.
Just pull on the handle that removes the rear carpeted panel area behind the driver's side tail light (where the amp is located), you will see the solenoid and ECU cable directly behind and below the tail light, unplug it and enjoy.
Plug it back in before service.
335i DIY same as X3:

http://www.e90post.com/forums/showthread.php?t=80661
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      01-08-2012, 08:09 PM   #13
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Quote:
Originally Posted by drmdvl View Post
Instead of messing with the vacuum line you can also just unplug the solenoid cable in the cargo area like the 335i guys do. This is what we did to our cars.
Just pull on the handle that removes the rear carpeted panel area behind the driver's side tail light (where the amp is located), you will see the solenoid and ECU cable directly behind and below the tail light, unplug it and enjoy.
Plug it back in before service.
335i DIY same as X3:

http://www.e90post.com/forums/showthread.php?t=80661
I was able to remove the actuator valve but I'm nervous about going through with it. Have you done it to the X3 yourself? Has anyone done this and experienced no problems? Wouldn't want to unplug it and start the car, only to be found among the smithereens that fall upon the ground.
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      01-09-2012, 08:30 AM   #14
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i did it and nothing seems to be wrong.. sounds a bit louder but not any big diffrence IMO

think im going to conect it back, the WIFE is bitching bout it!!
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      01-09-2012, 10:03 AM   #15
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ah, hahaha. That was great!

You can avoid the EPA agents wearing dark glasses if you wear a protective tinfoil hat while doing the mod.

Quote:
Originally Posted by Lotus7 View Post
C'mon Judd, where's your spirit of adventure? The worst thing that might happen if you do it electrically by disconnecting the wiring is that it might register an error code in the computer memory. That MIGHT result in a "tisk, tisk" warning from your friends at Perillo BMW, or it MIGHT result in BMW canceling your warranty and your never having to deal with them again. It COULD even result in a visit from a bunch of EPA agents wearing dark glasses who will whisk you away to a an unknown location (that the government claims does not exist) and them holding you for a few years without a trial.

C'mon, give it a try. If we don't hear from you ever again, we'll know it's not something to do to a poor, unsuspecting 35i.
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      01-09-2012, 10:40 AM   #16
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Quote:
Originally Posted by XRP View Post
i did it and nothing seems to be wrong.. sounds a bit louder but not any big diffrence IMO

think im going to conect it back, the WIFE is bitching bout it!!
if the wife is bitching about it, then its doing the job!
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      01-09-2012, 10:44 AM   #17
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Quote:
Originally Posted by juddholland View Post
I was able to remove the actuator valve but I'm nervous about going through with it. Have you done it to the X3 yourself? Has anyone done this and experienced no problems? Wouldn't want to unplug it and start the car, only to be found among the smithereens that fall upon the ground.
Yes! I have done this on our X3 35i and our 2011 335i without any problems. The sound is a more distinct grumble on start up and with light to moderate throttle acceleration. It just gives a little more beefiness to the sound, but it's not anything amazing like an aftermarket exhaust system.
It is a little more noticible on the the 335i and have driven it this way for 15,000 miles.
Honestly, it will throw a shadow code - but no SES lights or CEL's in the dash to worry about. The dealer will not hassle you about this.
And if they do decide to be tight asses, a mysteriously disconnected or "loose" cable would be easier to explain than a broken off golf tee or too small of a bearing lost in your vaccum line

Last edited by drmdvl; 01-09-2012 at 10:52 AM..
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      01-09-2012, 10:27 PM   #18
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Alright alright alright. You've convinced me. I'll do it tomorrow.
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      01-09-2012, 11:12 PM   #19
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Going to try it out when I get my X3 back too. Talked to the mechanics at my Dealership. It wont make a difference with warranty they say. The only thing is that it might take longer to warm up as it closes the flap in the second pipe when the engine is cool.
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      01-10-2012, 11:34 PM   #20
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So I tried this and it didn't seem to do much. I barely notice anything. Maybe it's because I tend to drive a bit harder so I'm not in the low range very often. The only truly discernible difference is that now I can no longer hear the valve opening at 3000 RPMs, nor can I hear it when I shut off the car.
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      01-19-2012, 04:50 AM   #21
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I tried it also, and noticed a slightly deeper/louder sound at start up. Slightly louder around town in lower rev which makes sense since it would open at full throttle before. I like the "slightly" louder sound.
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