How loud is it?

spdrcrgtr · 11-17-2021, 12:29 PM

I've watched tons of videos on Youtube of F8x's with catless downpipes + single mid-pipe, but you can never really get a good 'real live' impression on a video.

I have catless DPs, but the rest of the exhaust is stock. I'm thinking about getting a single mid-pipe, but concerned about daily driving sound/drone. Obviously, with flaps open, it's going to be louder, but how is it in efficient mode?

Can you please share your thoughts about the sound/drone/etc with having catless downpipes + single midpipe (AA or VRSF)?

Thanks!

Pinnacle Tuning Solutions · 11-17-2021, 12:59 PM

My friend has this setup on a CS and it's definitely dailyable. The car sounds nice with the valves open and you can definitely hear some turbo spool. As it turns out, it wasn't loud enough for him so we unplugged the valves which keeps it open even in efficient mode.

For me, I am keeping my downpipes on because I don't like the catless smell as it gives me a headache...

spdrcrgtr · 11-17-2021, 01:12 PM

Quote:

Originally Posted by Pinnacle Tuning Solutions

My friend has this setup on a CS and it's definitely dailyable. The car sounds nice with the valves open and you can definitely hear some turbo spool. As it turns out, it wasn't loud enough for him so we unplugged the valves which keeps it open even in efficient mode.

For me, I am keeping my downpipes on because I don't like the catless smell as it gives me a headache...

Any drone inside the car, especially on the freeway? Want to know because my car is practically silent with the flaps closed during normal driving.

TopJimmy · 11-17-2021, 05:39 PM

With a single mid you're gonna hear some more under the floor. There's no way to avoid it because the 2-into-1 increases volume by lowering tone. Any time you change size or to a split/merge you're gonna pick up sound. I like the deep sound and don't think it drones, it's just louder.

deemack79 · 11-17-2021, 05:59 PM

ARM catless res DP's, AA single, Remus muffler. Very nice bark when you're on it, modest at partial throttle, quieter than stock valves closed. Completely livable imo.

spdrcrgtr · 11-17-2021, 06:20 PM

Would it pass the wife test (she's not terribly into cars - shame)

TopJimmy · 11-17-2021, 06:39 PM

It's a wife man. You know how that can go…

heitzke · 11-17-2021, 08:20 PM

I have catless dp and a single-mid and it's honestly still really quiet with the valves closed through the stock non-ZCP muffler. With the valves open it's a different story entirely.

No drone in either scenario but it's loud with the valves open. For example: this is 2nd gear crawling through my partners neighborhood

edit: for science - this setup is stock non-ZCP muffler, VRSF single-mid, VRSF downpipes, Pure Stage 2+

mapster37 · 11-18-2021, 05:41 AM

im currently running aa EL resonated midpipe with stock non zcp muffler. the sound isnt much different from stock with the valves closed. its louder with valves open but not obnoxious, more of a growl. i just picked up a set of arm catless resonated dp's. ill update new sound once i install....

spdrcrgtr · 11-18-2021, 10:08 AM

Quote:

Originally Posted by TopJimmy

It's a wife man. You know how that can go…

Ha ... true

lookitsapples · 11-18-2021, 11:32 AM

I'm running a vrsf catless downpipe, single midpipe, and remus axle back. The car is interesting where inside the cabin it doesn't sound very loud at all and has little to no drone. But from the outside I'm told my car is very loud.

BoxKing · 11-18-2021, 12:25 PM

Quote:

Originally Posted by lookitsapples

I'm running a vrsf catless downpipe, single midpipe, and remus axle back. The car is interesting where inside the cabin it doesn't sound very loud at all and has little to no drone. But from the outside I'm told my car is very loud.

Damn I cant wait to get this installed- I have the same setup with the AA Mid sitting next to my desk, and the REMUS pending shipment!

spdrcrgtr · 11-19-2021, 04:00 PM

Ordered the MAD mid-pipe today; will let you know if it's too loud and hopefully not smell too bad.

I ordered from Extreme Powerhouse - damn they are fast - ordered this morning and already shipped! Thanks, Mike!

guess2098 · 11-19-2021, 06:11 PM

I don't have single mid pipe but my m4 is extremely loud when valves open. While m3cs is not as loud as m4.
Both car has akrapovic dp and exhaust. But m4 has modified turbo and intake I don't know if that makes difference.

Let us know how loud is your car as I am thinking swap to single mid too

spdrcrgtr · 11-19-2021, 06:25 PM

Quote:

Originally Posted by guess2098

I don't have single mid pipe but my m4 is extremely loud when valves open. While m3cs is not as loud as m4.
Both car has akrapovic dp and exhaust. But m4 has modified turbo and intake I don't know if that makes difference.

Let us know how loud is your car as I am thinking swap to single mid too

Will report back when i get it installed ...

spdrcrgtr · 11-22-2021, 09:34 PM

Okay so got the MAD midpipe installed today. Here are some initial comments since I haven't had a chance to really push on the car yet. Just drove it back from the shop and a bit around town.

Got the MAD midpipe for Extreme - fitment is spot-on and no issues. I wish it came with a new gasket, but not a big deal.

1. Hard to say if it added HP, but I also haven't really tried to "test" - will have to report back on that.

2. I have catless DPs - You WILL smell exhaust/fuel fumes on the outside rear of the car, but could also inside if you have the windows open and the wind blows in that direction. IMO it's not that bad, but i also had multiple cars that had no cats. I had a MKIV TT Supra and it was straight piped from the turbo back. Again, it's not that bad, but it's a preference that some people may not want/like. This is to be expected since my car now has no cats at all.

3. In efficient-mode with the exhaust flaps closed, the car is totally daily drivable. No drone that I can tell yet. Just a bit loader than just having catless DPs and the stock midpipe. If this is your concern, really don't worry about it. It's really just a tad louder, but once you get used to it, it's going to be hard to tell.

4. With the exhaust flaps open, it's pretty loud. Unless your racing or maybe on the freeway, you're going to have them closed - it's pretty loud. I actually plan to turn my burbles down because it sounds like a .45 or shotgun when they go off. This point is a slight bummer to me because I liked driving around sometimes with the flaps open, but now I'm going to think twice.

Overall for now I'm pretty content, but i will have to give it a few weeks of driving to really have a better opinion about it. If the smell and volume starts to bother me, I may go to catted DPs and that would likely fix the issues.

I hope my feedback helps.

11-17-2021, 12:29 PM	#1
spdrcrgtr Lieutenant 115 Rep 482 Posts Drives: BMW M4 Heritage Join Date: Nov 2012 Location: Los Angeles iTrader: (1)	How loud is it? I've watched tons of videos on Youtube of F8x's with catless downpipes + single mid-pipe, but you can never really get a good 'real live' impression on a video. I have catless DPs, but the rest of the exhaust is stock. I'm thinking about getting a single mid-pipe, but concerned about daily driving sound/drone. Obviously, with flaps open, it's going to be louder, but how is it in efficient mode? Can you please share your thoughts about the sound/drone/etc with having catless downpipes + single midpipe (AA or VRSF)? Thanks!
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11-17-2021, 12:59 PM	#2
Pinnacle Tuning Solutions "this will be a daily" 5 Rep 10 Posts Drives: '18 M3 Competition Join Date: Nov 2021 Location: Houston, Texas iTrader: (0)	My friend has this setup on a CS and it's definitely dailyable. The car sounds nice with the valves open and you can definitely hear some turbo spool. As it turns out, it wasn't loud enough for him so we unplugged the valves which keeps it open even in efficient mode. For me, I am keeping my downpipes on because I don't like the catless smell as it gives me a headache... __________________ '18 Sakhir Orange M3 ZCP
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11-17-2021, 05:39 PM	#4
TopJimmy Major General 5450 Rep 5,143 Posts Drives: 2023 M3 Comp xDrive Join Date: Jul 2019 Location: Chester County, PA iTrader: (5)	With a single mid you're gonna hear some more under the floor. There's no way to avoid it because the 2-into-1 increases volume by lowering tone. Any time you change size or to a split/merge you're gonna pick up sound. I like the deep sound and don't think it drones, it's just louder. __________________ '18 F80 Base 6MT \| '19 F82 Exec DCT \| '18 F82 Comp Exec DCT \| '23 G80cx
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11-17-2021, 05:59 PM	#5
deemack79 Second Lieutenant 286 Rep 255 Posts Drives: F80 M3 Join Date: Jan 2020 Location: Long Island iTrader: (1)	ARM catless res DP's, AA single, Remus muffler. Very nice bark when you're on it, modest at partial throttle, quieter than stock valves closed. Completely livable imo.
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11-17-2021, 06:20 PM	#6
spdrcrgtr Lieutenant 115 Rep 482 Posts Drives: BMW M4 Heritage Join Date: Nov 2012 Location: Los Angeles iTrader: (1)	Would it pass the wife test (she's not terribly into cars - shame)
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11-17-2021, 06:39 PM	#7
TopJimmy Major General 5450 Rep 5,143 Posts Drives: 2023 M3 Comp xDrive Join Date: Jul 2019 Location: Chester County, PA iTrader: (5)	It's a wife man. You know how that can go… __________________ '18 F80 Base 6MT \| '19 F82 Exec DCT \| '18 F82 Comp Exec DCT \| '23 G80cx
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11-17-2021, 08:20 PM	#8
heitzke Captain 1153 Rep 783 Posts Drives: '15 M4 base, '04 Cobra Join Date: Feb 2021 Location: Nashville iTrader: (1)	I have catless dp and a single-mid and it's honestly still really quiet with the valves closed through the stock non-ZCP muffler. With the valves open it's a different story entirely. No drone in either scenario but it's loud with the valves open. For example: this is 2nd gear crawling through my partners neighborhood edit: for science - this setup is stock non-ZCP muffler, VRSF single-mid, VRSF downpipes, Pure Stage 2+ __________________ Mosselman-powered M4 - 698/714 \| 2.9 Whipple 2004 Cobra - 690/645 \| Instagram Last edited by heitzke; 11-18-2021 at 09:52 AM..
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11-18-2021, 05:41 AM	#9
mapster37 Captain 360 Rep 923 Posts Drives: F80 Join Date: Sep 2018 Location: Davie iTrader: (2)	im currently running aa EL resonated midpipe with stock non zcp muffler. the sound isnt much different from stock with the valves closed. its louder with valves open but not obnoxious, more of a growl. i just picked up a set of arm catless resonated dp's. ill update new sound once i install....
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11-18-2021, 11:32 AM	#11
lookitsapples Private First Class 113 Rep 141 Posts Drives: 2016 m3 Join Date: Jan 2019 Location: San Jose, CA iTrader: (0)	I'm running a vrsf catless downpipe, single midpipe, and remus axle back. The car is interesting where inside the cabin it doesn't sound very loud at all and has little to no drone. But from the outside I'm told my car is very loud.
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11-19-2021, 04:00 PM	#13
spdrcrgtr Lieutenant 115 Rep 482 Posts Drives: BMW M4 Heritage Join Date: Nov 2012 Location: Los Angeles iTrader: (1)	Ordered the MAD mid-pipe today; will let you know if it's too loud and hopefully not smell too bad. I ordered from Extreme Powerhouse - damn they are fast - ordered this morning and already shipped! Thanks, Mike! Last edited by spdrcrgtr; 11-19-2021 at 06:24 PM..
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11-19-2021, 06:11 PM	#14
guess2098 Major 516 Rep 1,247 Posts Drives: 2022 Taycan GTS, 2018 M4, 2016 Join Date: May 2009 Location: Rowland Heights, CA iTrader: (5)	I don't have single mid pipe but my m4 is extremely loud when valves open. While m3cs is not as loud as m4. Both car has akrapovic dp and exhaust. But m4 has modified turbo and intake I don't know if that makes difference. Let us know how loud is your car as I am thinking swap to single mid too
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11-22-2021, 09:34 PM	#16
spdrcrgtr Lieutenant 115 Rep 482 Posts Drives: BMW M4 Heritage Join Date: Nov 2012 Location: Los Angeles iTrader: (1)	Okay so got the MAD midpipe installed today. Here are some initial comments since I haven't had a chance to really push on the car yet. Just drove it back from the shop and a bit around town. Got the MAD midpipe for Extreme - fitment is spot-on and no issues. I wish it came with a new gasket, but not a big deal. 1. Hard to say if it added HP, but I also haven't really tried to "test" - will have to report back on that. 2. I have catless DPs - You WILL smell exhaust/fuel fumes on the outside rear of the car, but could also inside if you have the windows open and the wind blows in that direction. IMO it's not that bad, but i also had multiple cars that had no cats. I had a MKIV TT Supra and it was straight piped from the turbo back. Again, it's not that bad, but it's a preference that some people may not want/like. This is to be expected since my car now has no cats at all. 3. In efficient-mode with the exhaust flaps closed, the car is totally daily drivable. No drone that I can tell yet. Just a bit loader than just having catless DPs and the stock midpipe. If this is your concern, really don't worry about it. It's really just a tad louder, but once you get used to it, it's going to be hard to tell. 4. With the exhaust flaps open, it's pretty loud. Unless your racing or maybe on the freeway, you're going to have them closed - it's pretty loud. I actually plan to turn my burbles down because it sounds like a .45 or shotgun when they go off. This point is a slight bummer to me because I liked driving around sometimes with the flaps open, but now I'm going to think twice. Overall for now I'm pretty content, but i will have to give it a few weeks of driving to really have a better opinion about it. If the smell and volume starts to bother me, I may go to catted DPs and that would likely fix the issues. I hope my feedback helps.
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