640 gran coupe exhaust options

Genovese45 · 08-11-2018, 03:56 PM

I used the search option, and couldnt find much info on exhaust systems for the 640i GC. Any suggestions as to what systems you guys are using pros and cons. I am only seeing Megan and eisenmann exhausts on youtube. Clips dont do either of them much justice. I am looking to do quad tips. And I have an msport 640 gc. Which diffuser is going to work with quad tips and my car? From my research I have come up with the m6 diffuser, am I correct or will a 650 gc diffuser work? Thanks in advance

Tfzen · 08-11-2018, 07:22 PM

Sorry to hijack this thread,
Anyone knows how to make 640i sounds like this?

As far as I know there are no valves on our exhaust.

DerBosewicht · 08-13-2018, 08:45 AM

Quote:

Originally Posted by Tfzen

Sorry to hijack this thread,
Anyone knows how to make 640i sounds like this?

As far as I know there are no valves on our exhaust.

That’s sounds like it is a straight pipe with no mufflers

tpsc3crt · 08-22-2018, 12:18 AM

Quote:

Originally Posted by Genovese45

I used the search option, and couldnt find much info on exhaust systems for the 640i GC. Any suggestions as to what systems you guys are using pros and cons. I am only seeing Megan and eisenmann exhausts on youtube. Clips dont do either of them much justice. I am looking to do quad tips. And I have an msport 640 gc. Which diffuser is going to work with quad tips and my car? From my research I have come up with the m6 diffuser, am I correct or will a 650 gc diffuser work? Thanks in advance

You could go with those name brands, or have an exhaust shop remove the mufflers and do a straight pipe to dual tips on each side. Then go for the M6 diffuser. I opted for swapping my 640 mufflers for 650 msport because i like the cleaner look of the rectangular shaped tips. Pops really well with a tune and intake. I just got a downpipe i have yet to install. So that should make it much meaner.

tpsc3crt · 08-22-2018, 12:20 AM

Quote:

Originally Posted by DerBosewicht

That’s sounds like it is a straight pipe with no mufflers

Agreed. Sounds like he removed the exhaust and did a simple straight pipe. More pops come with a tune. I have the JB4 and it definitely helps and is easy to install if you're only doing stage1 for a conservative boost and not higher.

Genovese45 · 08-22-2018, 12:20 AM

Quote:

Originally Posted by tpsc3crt

Quote:

Originally Posted by Genovese45

I used the search option, and couldnt find much info on exhaust systems for the 640i GC. Any suggestions as to what systems you guys are using pros and cons. I am only seeing Megan and eisenmann exhausts on youtube. Clips dont do either of them much justice. I am looking to do quad tips. And I have an msport 640 gc. Which diffuser is going to work with quad tips and my car? From my research I have come up with the m6 diffuser, am I correct or will a 650 gc diffuser work? Thanks in advance

You could go with those name brands, or have an exhaust shop remove the mufflers and do a straight pipe to dual tips on each side. Then go for the M6 diffuser. I opted for swapping my 640 mufflers for 650 msport because i like the cleaner look of the rectangular shaped tips. Pops really well with a tune and intake. I just got a downpipe i have yet to install. So that should make it much meaner.

thank you. where did you purchase your diffuser if you dont mind me asking? there are so many I dont wanna purchase one that has fitment issues.

DerBosewicht · 08-22-2018, 12:23 AM

Quote:

Originally Posted by tpsc3crt

Agreed. Sounds like he removed the exhaust and did a simple straight pipe. More pops come with a tune. I have the JB4 and it definitely helps and is easy to install if you're only doing stage1 for a conservative boost and not higher.

Agreed, I am currently running the JB4 with Megan Racing mufflers with a deleted resonator on a 650 though..and I am ver happy with my exhaust note.. aggressive if you on it.. purrs when just daily driving...

Straight pipe going to give you a lot of drone is the consensus from a lot of other senior members...

Genovese45 · 08-22-2018, 05:27 PM

Quote:

Originally Posted by DerBosewicht

Quote:

Originally Posted by tpsc3crt

Agreed. Sounds like he removed the exhaust and did a simple straight pipe. More pops come with a tune. I have the JB4 and it definitely helps and is easy to install if you're only doing stage1 for a conservative boost and not higher.

Agreed, I am currently running the JB4 with Megan Racing mufflers with a deleted resonator on a 650 though..and I am ver happy with my exhaust note.. aggressive if you on it.. purrs when just daily driving...

Straight pipe going to give you a lot of drone is the consensus from a lot of other senior members...

is yours an xdrive? because I called Megan and they said that their mufflers are not made for the xdrive. but I think that it may work with some modifications. I think that a muffler shop can make anything with a little modifying. am I wrong?

$howtime456 · 08-22-2018, 06:54 PM

go m5 or m6 exhaust. Hpipe and delete resonators.

Genovese45 · 08-22-2018, 07:02 PM

Quote:

Originally Posted by $howtime456

go m5 or m6 exhaust. Hpipe and delete resonators.

what about drone? and is the h pipe the same as the x pipe?

Genovese45 · 08-25-2018, 05:14 PM

Quote:

Originally Posted by tpsc3crt

Quote:

Originally Posted by Genovese45

I used the search option, and couldnt find much info on exhaust systems for the 640i GC. Any suggestions as to what systems you guys are using pros and cons. I am only seeing Megan and eisenmann exhausts on youtube. Clips dont do either of them much justice. I am looking to do quad tips. And I have an msport 640 gc. Which diffuser is going to work with quad tips and my car? From my research I have come up with the m6 diffuser, am I correct or will a 650 gc diffuser work? Thanks in advance

You could go with those name brands, or have an exhaust shop remove the mufflers and do a straight pipe to dual tips on each side. Then go for the M6 diffuser. I opted for swapping my 640 mufflers for 650 msport because i like the cleaner look of the rectangular shaped tips. Pops really well with a tune and intake. I just got a downpipe i have yet to install. So that should make it much meaner.

so with a v6 640 will it sound noticeably better with the mufflers removed? I dont want it 2 be obnoxious. Here is a pic of the tips I want to use. What do you think? You likey?

DerBosewicht · 08-26-2018, 11:02 PM

Quote:

Originally Posted by Genovese45

is yours an xdrive? because I called Megan and they said that their mufflers are not made for the xdrive. but I think that it may work with some modifications. I think that a muffler shop can make anything with a little modifying. am I wrong?

yes I have an xdrive and good muffler shop can do it..

sk0525 · 08-27-2018, 12:31 PM

I had a 640 GC xDrive and an exhaust (don't remember the manufacturer). If I could do it over, I'd stick with the M5/M6 exhaust and have a muffler shop install/modify as necessary.

Mennaf06 · 09-09-2020, 05:37 PM

I just had 2 borla mufflers and quad tips installed on my 640. I literally got nothing more out of it except drone at 2,000 rpm. I got them to agree to change it but I'm not sure what I should do.

1. Should I put stock resonator on for the right side, and delete left side muffler?

2. Delete them both?

3. Any combo of the above with an x pipe or H pipe.

I'm not looking for anything crazy and definitely don't want drone

08-11-2018, 03:56 PM	#1
Genovese45 Private First Class 36 Rep 140 Posts Drives: 2020 M850 Gran Coupe Join Date: Oct 2014 Location: North Chesterfield, VA iTrader: (0)	640 gran coupe exhaust options I used the search option, and couldnt find much info on exhaust systems for the 640i GC. Any suggestions as to what systems you guys are using pros and cons. I am only seeing Megan and eisenmann exhausts on youtube. Clips dont do either of them much justice. I am looking to do quad tips. And I have an msport 640 gc. Which diffuser is going to work with quad tips and my car? From my research I have come up with the m6 diffuser, am I correct or will a 650 gc diffuser work? Thanks in advance
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08-11-2018, 07:22 PM	#2
Tfzen Enlisted Member 8 Rep 40 Posts Drives: 640i GC Join Date: Dec 2011 Location: Belgium iTrader: (0)	Sorry to hijack this thread, Anyone knows how to make 640i sounds like this? As far as I know there are no valves on our exhaust.
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08-22-2018, 06:54 PM	#9
$howtime456 Major 301 Rep 1,230 Posts Drives: BMW 640i Join Date: Mar 2017 Location: NY iTrader: (0)	go m5 or m6 exhaust. Hpipe and delete resonators. __________________ N55 GENERAL David Shoup Tuned Fully Built By Miami Engines/Project Motorworks Precision 6266 On Steroids
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08-27-2018, 12:31 PM	#13
sk0525 Private First Class 13 Rep 153 Posts Drives: '18 F85 Join Date: Jan 2013 Location: Los Angeles iTrader: (0)	I had a 640 GC xDrive and an exhaust (don't remember the manufacturer). If I could do it over, I'd stick with the M5/M6 exhaust and have a muffler shop install/modify as necessary. __________________ '18 X5M \| '17 650i Gran Coupe \| '07 Tundra CrewMax 4x4 \| '06 Lancer Evolution IX MR
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09-09-2020, 05:37 PM	#14
Mennaf06 Enlisted Member 32 Rep 30 Posts Drives: 2016 Bmw 640i Join Date: Jun 2020 Location: toronto iTrader: (0)	I just had 2 borla mufflers and quad tips installed on my 640. I literally got nothing more out of it except drone at 2,000 rpm. I got them to agree to change it but I'm not sure what I should do. 1. Should I put stock resonator on for the right side, and delete left side muffler? 2. Delete them both? 3. Any combo of the above with an x pipe or H pipe. I'm not looking for anything crazy and definitely don't want drone Attached Images
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