11-26-2012, 01:46 AM | #1 |
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650i GC - Exhaust note - Cold Start
650i GC - Exhaust note - Cold Start
![]() Update! I used zip tie and keep flaps on both sides open. It is sounding much better at low speed. ![]() Last edited by neversummer78; 01-26-2013 at 03:29 PM.. |
11-26-2012, 11:15 PM | #2 |
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Love that sound!! I wish it always sounded like that...when in sport mode and hard on the throttle you can get some real music from that exhaust but the valves remain close most of the time making it tame!
Wish there was a way to keep the valves open! |
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11-26-2012, 11:25 PM | #3 |
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Yeap, somebody gotta make a mod for that. I can't hear much in the car while driving until I lower the windows. I wonder how X-Pipe works on this car. I used X-Pipe once in C350 and it was very sweet. It cost roughly $100 including installation and tax. That would be an awesome reasonable mod.
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11-27-2012, 04:13 AM | #5 |
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Yeap, I checked the price 2 weeks ago, and I have to look the other way. They have optional wireless remote valve flaps control which is very neat. With EV, it is basically $4000.00 without installation.
![]() Also, it isn't CARB approved, so cannot be used in CA. "products are not EPA or CARB approved and are intended for off-road/track use only" |
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11-27-2012, 11:57 AM | #7 |
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I have not come across any which is why I am thinking about X-Pipe mod. X-Pipe should allow for more aggressive note yet retain the OEM look. I didn't get a chance to lift and look at the underside yet, but there should be a spot for X-Pipe.
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11-27-2012, 07:23 PM | #8 |
I have to return some video tapes
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that is badass as hell
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12-11-2012, 10:10 PM | #11 |
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Found X-Pipe by Supersprint for 650i but not GC.
http://www.supersprintna.com/product...arch_model/286 |
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12-11-2012, 10:39 PM | #12 |
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I just checked with RealOEM and center muffler, part number 18307646960, seems to be connected to front muffler and rear exhaust system with simple clamps. May be I will visit local exhaust shop to see if they can build something to replace center muffler, so I can put on stock later if I don't like the sound.
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01-14-2013, 06:19 PM | #14 |
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01-16-2013, 01:45 AM | #18 |
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I thought the flaps only open at a certain speed or rpm? Did you do anything to open the flaps???
I'm also very confused of people referring to the M exhaust? I have the 650i with the M sport pack and I couldn't see any mention of the M exhaust in the list of things included. Is there in fact an M exhaust? |
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01-16-2013, 01:54 AM | #19 |
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I googled and realized that some do a mod to keep the flaps open.
Not sure if this is what was done to the car that was posted above from Germany? I need to figure this out...I want it done right away!!! ![]() |
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01-16-2013, 05:04 AM | #20 | |
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Quote:
normally the flaps opens at a certain rpm! its very easy to open the flaps, you can just lock/fix them with a little screw. thats it. tooks 5 minutes! your can also do a different mod if you cut off the hose wich opens the flaps: http://www.e90post.com/forums/attach...1&d=1183338204 but I dont tested it! but for a better and more agressive sound, the open flaps are a must have ![]() |
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01-16-2013, 12:53 PM | #21 | |
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I tried blocking the rubber pipe but the flaps remained closed! |
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01-16-2013, 01:05 PM | #22 | |
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Quote:
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