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      12-26-2018, 12:09 PM   #23
denniss
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Originally Posted by ARam View Post
NICE!!! I'm glad it worked out for you. I was getting crazy quotes from everywhere....

So the spring is visible from beneath the vehicle?
yes if you look under the car you can pull the spring with a pair of pliers
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      12-26-2018, 12:10 PM   #24
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and to be honest its not even the sound that was bothering me. Its the fact that its cold outside and smoke was only coming from a single pipe and with my OCD i couldnt deal with it.
That too ... I was like WTF!!!! One of the tech kid at WIDE W BMW unplugged the cable and plugged the cable unit and nothing would make this car open the flap.. I just told him just plug it back in and i will deal with it some other time.
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      12-26-2018, 12:11 PM   #25
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yes if you look under the car you can pull the spring with a pair of pliers
Nice! I'm not car labor savvy but will take the car somewhere in Jerome, BX and show the pictures you posted to do it for me.
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      12-26-2018, 12:12 PM   #26
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That too ... I was like WTF!!!! One of the tech kid at WIDE W BMW unplugged the cable and plugged the cable unit and nothing would make this car open the flap.. I just told him just plug it back in and i will deal with it some other time.
that "tech kid at WIDE W BMW" knows nothing.
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      12-26-2018, 12:13 PM   #27
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that "tech kid at WIDE W BMW" knows nothing.
Lol! What color combo you got?
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      12-26-2018, 12:14 PM   #28
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Lol! What color combo you got?
carbon black with tartufo
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      12-26-2018, 12:15 PM   #29
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carbon black with tartufo
Got the same interior but Alpine White exterior....
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      12-26-2018, 01:08 PM   #30
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Quote:
Originally Posted by ARam View Post
Nice! This is the only thing bothering me about the 40i as I came down from a 2016 X5M beast..... I feel like I'm driving an electric car now with the 40i. Been 3 weeks and is the only thing leaving me
and to be honest its not even the sound that was bothering me. Its the fact that its cold outside and smoke was only coming from a single pipe and with my OCD i couldnt deal with it.
It's to heat the cats quickly
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      01-02-2019, 02:58 PM   #31
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Come on guys, letís figure this out! Does anyone have any relationships with techs or tune shops? Iíve asked my local dealer techs and they didnít even know this was possible with the older generations....
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      01-24-2019, 07:20 PM   #32
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If anyone is curious, I was able to get my dealer to use their software to open the flap, and unplug the servo wires. Flap is now always open. Looks much better having exhaust exiting both pipes. From a sound perspective, it does sound a bit throatier, especially on start up. A bit of a drone on the highway though. Could be my imagination, but I feel I lost a bit of low-end torque.
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      01-29-2019, 08:14 AM   #33
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I opened valves permanently, mechanically. It's another car now, muuuch better
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      01-29-2019, 08:33 AM   #34
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I opened valves permanently, mechanically. It's another car now, muuuch better
Anyway you can post a video cold started and running.
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      01-30-2019, 12:15 AM   #35
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I opened valves permanently, mechanically. It's another car now, muuuch better
Can you please describe how it is another car now? What exactly are the differences while driving, while at idle, and on stat up.
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      01-30-2019, 04:30 AM   #36
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Can you please describe how it is another car now? What exactly are the differences while driving, while at idle, and on stat up.
It has a nicer and much loader sound even at low speed
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      01-30-2019, 05:12 AM   #37
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Anyway you can post a video cold started and running.
As you wish

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      04-27-2019, 06:49 PM   #38
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So if u unhook the spring it will open the valve?
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      04-28-2019, 05:32 AM   #39
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Quote:
Originally Posted by heinzena View Post
If anyone is curious, I was able to get my dealer to use their software to open the flap, and unplug the servo wires. Flap is now always open. Looks much better having exhaust exiting both pipes. From a sound perspective, it does sound a bit throatier, especially on start up. A bit of a drone on the highway though. Could be my imagination, but I feel I lost a bit of low-end torque.
The velocity of the exhaust should decrease and can have an impact at lower rpm. The purpose of the flap is to increase low rpm exhaust velocity by restricting the flow which helps create a low pressure scenario at the turbo, which helps it spool faster.

Ferrari has the same concept except they have two down pipes rather than the flap.

Generally the impact is slower spooling on the turbo which should impact your times and low rpm performance.

It'd be interesting to see some dragy comparisons.
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