Equal-length exhaust discussion: new S55 sounds

mike@x-ph.com · 04-20-2021, 08:43 AM

Quote:

Originally Posted by 1000hp

lol Standing by for coupon codes ��

Are you looking to get the MAD Max rear section?

rborane · 04-20-2021, 09:09 AM

Quote:

Originally Posted by 1000hp

Quick update: I put the non-res rear pipes on it tonight. Not much change. I like the resonators better.
Time to sell my organs for a muffler.

Do you still have the valves set to fully open all the time or did you try OEM valve settings? If fully open, you're going to get drone no matter what. A different muffler isn't going to get rid of the drone if the valves are set fully open with this mid-pipe.

1000hp · 04-20-2021, 10:51 AM

Quote:

Originally Posted by rborane

Do you still have the valves set to fully open all the time or did you try OEM valve settings? If fully open, you're going to get drone no matter what. A different muffler isn't going to get rid of the drone if the valves are set fully open with this mid-pipe.

Yep, no drone in OEM valve mode.

I don't rememeber the single midpipe ever droning with the valves fully open, so I was hoping I could open them up with this pipe, too. But no big loss. Just need a muffler that sounds good with OEM valve settings.

bmwmdistrict · 04-20-2021, 02:49 PM

I am finally picking up my car tomorrow (I had a lot of work done, more than just the new Dinan axleback + AA EL) so I will take a ton of videos and let you all know my thoughts. Can't wait...like a kid on Christmas

1000hp · 04-20-2021, 03:03 PM

Quote:

Originally Posted by mike@x-ph.com

Are you looking to get the MAD Max rear section?

Not today. I've been hemorrhaging cash on car parts lately.

Jamongkad · 04-21-2021, 01:40 AM

To anyone that's curious how a stock exhaust w/ non res midpipe setup sounds like at WOT down a straight. I forgot to mention in my last post that I have the CG PRECISION VSC-2 (thanks Mike @ x-ph) valve controller set to open.

mike@x-ph.com · 04-21-2021, 09:21 AM

Quote:

Originally Posted by Jamongkad

To anyone that's curious how a stock exhaust w/ non res midpipe setup sounds like at WOT down a straight. I forgot to mention in my last post that I have the CG PRECISION VSC-2 (thanks Mike @ x-ph) valve controller set to open.

My pleasure, im glad you are enjoying it

Kuucheki · 04-21-2021, 10:12 AM

Getting mine installed on Thursday. Can't wait!

Probably going to set exhaust flap settings back to factory per the recommendations here.

Finz · 04-21-2021, 11:26 AM

Quote:

Originally Posted by Kuucheki

Getting mine installed on Thursday. Can't wait!

Probably going to set exhaust flap settings back to factory per the recommendations here.

That's what I did on my M2C. WOT sounds even better in person than the videos. (Well, all in person are better). I have found that Sport+ is my go-to for normal driving, for some reason better in that 3K lazy acceleration spot. And quite the pop upshifting under WOT.

koh0886 · 04-21-2021, 12:34 PM

do you also have a bootmod3 installed? My vsc-2 stopped working after installing bootmod3. bm3 is set so it opens the valves after i turn it to sport mode so i guess i dont need it but it was nice that the car used to open valves as soon as i start the car.

preordered my aa el res mid pipes from x-ph....very excited and checking everyday to see if its shipped out

Quote:

Originally Posted by Jamongkad

To anyone that's curious how a stock exhaust w/ non res midpipe setup sounds like at WOT down a straight. I forgot to mention in my last post that I have the CG PRECISION VSC-2 (thanks Mike @ x-ph) valve controller set to open.

Jamongkad · 04-21-2021, 02:33 PM

Quote:

Originally Posted by koh0886

do you also have a bootmod3 installed? My vsc-2 stopped working after installing bootmod3. bm3 is set so it opens the valves after i turn it to sport mode so i guess i dont need it but it was nice that the car used to open valves as soon as i start the car.

preordered my aa el res mid pipes from x-ph....very excited and checking everyday to see if its shipped out

Nope engine is all stock. I coded out the burbles and have auto rev matching in Sport+ (I'm a weakling in heel & toe) which was all done on a BPM Sport tune.
You ordered the res mid pipes yes? If that's so you might want to pair it with a catless downpipe because the sound might be too muted for you.

koh0886 · 04-21-2021, 03:40 PM

ahh ic. ok thanks for the info. definitely going to turn off the burbles also

yep, got catless dps, just waiting on the mid pipes to install together.

thanks man!!

Quote:

Originally Posted by Jamongkad

Nope engine is all stock. I coded out the burbles and have auto rev matching in Sport+ (I'm a weakling in heel & toe) which was all done on a BPM Sport tune.
You ordered the res mid pipes yes? If that's so you might want to pair it with a catless downpipe because the sound might be too muted for you.

Kuucheki · 04-22-2021, 12:19 AM

Quote:

Originally Posted by Finz

Quote:

Originally Posted by Kuucheki

Getting mine installed on Thursday. Can't wait!

Probably going to set exhaust flap settings back to factory per the recommendations here.

That's what I did on my M2C. WOT sounds even better in person than the videos. (Well, all in person are better). I have found that Sport+ is my go-to for normal driving, for some reason better in that 3K lazy acceleration spot. And quite the pop upshifting under WOT.

Did you disable active sound and the stock burbles? Might end up doing that as well.

Finz · 04-22-2021, 07:00 AM

Quote:

Originally Posted by Kuucheki

Quote:

Originally Posted by Finz

Quote:

Originally Posted by Kuucheki

Getting mine installed on Thursday. Can't wait!

Probably going to set exhaust flap settings back to factory per the recommendations here.

That's what I did on my M2C. WOT sounds even better in person than the videos. (Well, all in person are better). I have found that Sport+ is my go-to for normal driving, for some reason better in that 3K lazy acceleration spot. And quite the pop upshifting under WOT.

Did you disable active sound and the stock burbles? Might end up doing that as well.

Yes. Bypass harness for no ASD and BimmerLink for no burbles. Best combo thus far for me.

Kuucheki · 04-22-2021, 03:34 PM

Rear section of the midpipe is too long

1000hp · 04-22-2021, 04:15 PM

Quote:

Originally Posted by Kuucheki

Rear section of the midpipe is too long

Too long where?

Kuucheki · 04-22-2021, 04:28 PM

Quote:

Originally Posted by 1000hp

Quote:

Originally Posted by Kuucheki

Rear section of the midpipe is too long

Too long where?

Where it mates up the muffler. Spoke with AA. Having a muffler shop fix it tomorrow.

Snapple415 · 04-22-2021, 06:08 PM

This is just 😮 do you guys think this is res or non res?

1000hp · 04-23-2021, 08:51 PM

Quote:

Originally Posted by Kuucheki

Where it mates up the muffler. Spoke with AA. Having a muffler shop fix it tomorrow.

Too long for where you cut it? Or does it actually go past the weld/bend on the muffler inlet?

1000hp · 04-23-2021, 08:52 PM

Quote:

Originally Posted by Snapple415

This is just 😮 do you guys think this is res or non res?

Non-res.

The resonators mute that brassy G35 trombone shit that you hear in the video.

McBobby Jr · 04-23-2021, 10:30 PM

I made a thread about this specific equal-length exhaust system. I realized many of you really only check up on this thread for anything equal-length related. Here is the thread and a video of how the actual exhaust system sounds. https://f80.bimmerpost.com/forums//s....php?t=1819578

To be honest, the S55 in this video sounds like a single turbo N54.

Kilabyte · 04-24-2021, 12:17 AM

Honestly it sounds like a chainsaw, needs 78 resonators

I hate it when people do "exhaust videos" by doing anything BUT an exhaust video

04-20-2021, 02:49 PM	#2138
bmwmdistrict Major 908 Rep 1,044 Posts Drives: 2020 X3M Join Date: Nov 2018 Location: NoVa iTrader: (10) Garage List 2020 BMW X3MC [10.00]	I am finally picking up my car tomorrow (I had a lot of work done, more than just the new Dinan axleback + AA EL) so I will take a ton of videos and let you all know my thoughts. Can't wait...like a kid on Christmas __________________ Rob \| instagram 2020 F97 X3 ///M Donington Grey 2018 G01 X3 xDrive30i Alpine White Previous: 2016 F82 ///M4 Black Sapphire Metallic \| My Build Thread
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04-21-2021, 01:40 AM	#2140
Jamongkad First Lieutenant 239 Rep 354 Posts Drives: 2021 BMW M2 F87 Join Date: Feb 2019 Location: Sacramento, CA iTrader: (2)	To anyone that's curious how a stock exhaust w/ non res midpipe setup sounds like at WOT down a straight. I forgot to mention in my last post that I have the CG PRECISION VSC-2 (thanks Mike @ x-ph) valve controller set to open.
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04-21-2021, 10:12 AM	#2142
Kuucheki Private First Class 29 Rep 166 Posts Drives: 2018 BMW M3 Competition Packag Join Date: Mar 2020 Location: Glendale CA iTrader: (0)	Getting mine installed on Thursday. Can't wait! Probably going to set exhaust flap settings back to factory per the recommendations here.
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04-22-2021, 03:34 PM	#2149
Kuucheki Private First Class 29 Rep 166 Posts Drives: 2018 BMW M3 Competition Packag Join Date: Mar 2020 Location: Glendale CA iTrader: (0)	Rear section of the midpipe is too long
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04-22-2021, 06:08 PM	#2152
Snapple415 New Member 5 Rep 10 Posts Drives: 2020 M4 ZCP Join Date: Feb 2021 Location: Montreal iTrader: (0)	This is just 😮 do you guys think this is res or non res?
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04-23-2021, 10:30 PM	#2155
McBobby Jr Lieutenant 212 Rep 576 Posts Drives: '18 240i xDrive Join Date: Mar 2020 Location: Anchorage, AK iTrader: (0)	I made a thread about this specific equal-length exhaust system. I realized many of you really only check up on this thread for anything equal-length related. Here is the thread and a video of how the actual exhaust system sounds. https://f80.bimmerpost.com/forums//s....php?t=1819578 To be honest, the S55 in this video sounds like a single turbo N54. __________________ current '18 F22 240i xDrive - FBO '16 F82 M4 ZCP - FBO previous '08 E90 335i Montego Blue
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04-24-2021, 12:17 AM	#2156
Kilabyte I'm Batman! 3948 Rep 1,477 Posts Drives: Mineral White M3 6MT Join Date: Jun 2019 Location: Massachusetts iTrader: (1)	Honestly it sounds like a chainsaw, needs 78 resonators I hate it when people do "exhaust videos" by doing anything BUT an exhaust video __________________ S55, 2JZ, M48.00 Last edited by Kilabyte; 04-24-2021 at 12:52 AM..
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