Downpipe + Valvetronic Midpipe = Best M3 Sound Ever?

G80_Soom · 10-02-2021, 03:50 PM

Featured on BIMMERPOST.com

Hey Bimmerpost fam! Here's the long awaited video demonstration of my downpipe + Valvetronic equal length single mid-pipe setup on the G80. Special thanks to Austin and Phil from Valvetronic Designs for creating this video. It was awesome hearing my car from the outside for once!

Quick review - I absolutely love this setup. It works with the factory valve control so it's quiet or loud when you want it. In efficient mode, it's quiet and just slightly louder than stock. I commute in this car daily in that mode. It's full race car loud in Sport+ when you're joyriding and just the right balance between the two in Sport. I was concerned about rasp after the downpipe but the single midpipe keeps the deep aggressive tone that the duals don't have. I highly recommend this setup!

They are getting more in stock of the mid-pipe very soon and if interested, use my referral link: https://valvetronic.com/?ref=ZVvd_wADgy1qNQ for a discount! Feel free to ask me any questions and comment below what you think!

I'd really appreciate a like and subscribe. More mods and content coming soon! Hint: Whoosh noises

Follow @G80_Soom @Phillybimmerclub @Valvetronic on IG!

TrentMeister · 10-02-2021, 03:51 PM

What's cold start like?

HeelToeShift · 10-02-2021, 03:59 PM

Sounds fantastic!

G80_Soom · 10-03-2021, 02:00 PM

Quote:

Originally Posted by TrentMeister

What's cold start like?

Cold start in efficient mode(how it normally starts) isn't bad but if you flick it to Sport+ it is obnoxiously loud haha. Even tho it's in a garage, I would not cold start it in Sport+

TrentMeister · 10-03-2021, 03:00 PM

Quote:

Originally Posted by G80_Soom

Quote:

Originally Posted by TrentMeister

What's cold start like?

Cold start in efficient mode(how it normally starts) isn't bad but if you flick it to Sport+ it is obnoxiously loud haha. Even tho it's in a garage, I would not cold start it in Sport+

Good to know, I'm considering this setup but don't want my entire neighborhood to hate my guts lol

bimmermann88 · 10-03-2021, 10:16 PM

I would get this setup in a second if it didn't create a CEL!!

Paletero · 10-03-2021, 11:04 PM

Quote:

Originally Posted by bimmermann88

I would get this setup in a second if it didn't create a CEL!!

You can get Active Autowerke DP with GESI Cat. It says you will not get a CEL with this DP.

AhsanU · 10-03-2021, 11:40 PM

Your clip has literally forced me to buy a G80 - thank you for this! This setup of yours has stock axle back/muffler, correct?

I can assume that the G8X exhaust setup similar to the F8X in terms of layout, so it goes DP -> midpipes -> axle back. So if this is how loud it is with catless DP's with a single midpipe, how loud would it be in conjunction with an aftermarket exhaust? Yikers.

Either way, thank you again!

bimmermann88 · 10-04-2021, 05:27 AM

Quote:

Originally Posted by Paletero

Quote:

Originally Posted by bimmermann88

I would get this setup in a second if it didn't create a CEL!!

You can get Active Autowerke DP with GESI Cat. It says you will not get a CEL with this DP.

Yeah their like 4 grand though…. I can get a R44 race exhaust cat back for around the same price and I wouldn't have to chop anything up!

02M3ForMe · 10-04-2021, 07:35 AM

Quote:

Originally Posted by bimmermann88

I would get this setup in a second if it didn't create a CEL!!

R44 makes a catless DP with an internal O2 spacer that’s confirmed to prevent the CEL.

G80_Soom · 10-04-2021, 09:17 AM

Quote:

Originally Posted by bimmermann88

I would get this setup in a second if it didn't create a CEL!!

JB4 deletes it

Grumpy514 · 10-06-2021, 12:36 AM

This is just my speed. I love this!

AhsanU · 10-11-2021, 12:21 AM

Quote:

Originally Posted by 02M3ForMe

R44 makes a catless DP with an internal O2 spacer that’s confirmed to prevent the CEL.

I actually emailed them and am looking forward to learning more about this. Living in NY means that the catless dp's will be a problem in about 3 years when OBDII inspections are required.. and this is assuming I can clear the CEL.

Could you direct me to where you found examples of the R44 dp's that don't throw a CEL? I'd greatly appreciate it.

Paletero · 10-11-2021, 07:33 AM

Quote:

Originally Posted by AhsanU

I actually emailed them and am looking forward to learning more about this. Living in NY means that the catless dp's will be a problem in about 3 years when OBDII inspections are required.. and this is assuming I can clear the CEL.

Could you direct me to where you found examples of the R44 dp's that don't throw a CEL? I'd greatly appreciate it.

Here is the link to R44 dp's. It doesn't say in the listing that it will not have a CEL, but I think they mentioned it in the video on the page. Might have to contact them to confirm.

https://r44performance.co.uk/collect...tless-downpipe

Another option is Active Autowerke's dp, but it is a lot more expensive.

https://store.activeautowerke.com/pr...pes-w-gesi-cat

02M3ForMe · 10-11-2021, 09:55 AM

I ran iPE test pipes with embedded mini-cats like this on a previous car and I passed the OBD2 smog check with it. The relevant monitors were ready and the CEL legitimately off, no tune or software needed. I’m sure it would’ve failed an old-school actual sniff test, though. Visual may be an issue, too (old car had completely flat bottom, nothing exposed underneath). It’s probably enough for a “friendly” shop to pass you in NY.

frankiebones · 10-14-2021, 12:37 PM

Quote:

Originally Posted by TrentMeister

Good to know, I'm considering this setup but don't want my entire neighborhood to hate my guts lol

I had MPE with midpipe and valves pulled on my Base F80 and my CS and it was one of the reasons I'm now divorced lol.

Tall Tom Cruise · 10-15-2021, 10:57 AM

Quote:

Originally Posted by frankiebones

I had MPE with midpipe and valves pulled on my Base F80 and my CS and it was one of the reasons I'm now divorced lol.

I ran catless dp's, catless midpipes, and a stock rear section with valves pulled on my f82. It was an absolute racket.

That said, planning on doing the same setup Soom is running. I have catless dp's going on this weekend. Valvetronics midpipe to follow whenever that comes in...

This setup just sounds so good. My current setup is just a dual resonator delete and x-pipe, which I've already got an exhaust ticket with. So this new setup should be fun.

Gfit · 10-15-2021, 12:27 PM

Quote:

Originally Posted by Tall Tom Cruise

Quote:

Originally Posted by frankiebones

I had MPE with midpipe and valves pulled on my Base F80 and my CS and it was one of the reasons I'm now divorced lol.

I ran catless dp's, catless midpipes, and a stock rear section with valves pulled on my f82. It was an absolute racket.

That said, planning on doing the same setup Soom is running. I have catless dp's going on this weekend. Valvetronics midpipe to follow whenever that comes in...

This setup just sounds so good. My current setup is just a dual resonator delete and x-pipe, which I've already got an exhaust ticket with. So this new setup should be fun.

Question. What's the difference between what you have now with the res delete and x pipe and putting on the valvetronics mid pipe?

Salespunk · 10-20-2021, 09:04 AM

Love the sound, but the fact that they complain about the front end on the order page turns me off.

Besides the quite strange grille setup, the G80 is a killer new M car, but like most, the sound is lacking.

F85MTuNED · 10-20-2021, 10:06 AM

I can't lie it does sound pretty damn good! I'm not really hearing any rasp.

///M ARMY · 10-20-2021, 10:12 AM

Quote:

Originally Posted by G80_Soom

JB4 deletes it

from my understaning that the jb4 doesn't delete it

Vic55 · 10-20-2021, 11:05 AM

Quote:

Originally Posted by ///M ARMY

from my understaning that the jb4 doesn't delete it

It doesnt, it removes on that drive cycle but it will come back--- just like using an obd2 tool- its not permanent.

10-02-2021, 03:50 PM	#1
G80_Soom Freude am fahren 671 Rep 240 Posts Drives: '25 G80 M3 Competition xDrive Join Date: Feb 2012 Location: Philadelphia iTrader: (0) Garage List 2025 BMW M3 Competi ... [8.00]	Downpipe + Valvetronic Midpipe = Best M3 Sound Ever? Featured on BIMMERPOST.com Hey Bimmerpost fam! Here's the long awaited video demonstration of my downpipe + Valvetronic equal length single mid-pipe setup on the G80. Special thanks to Austin and Phil from Valvetronic Designs for creating this video. It was awesome hearing my car from the outside for once! Quick review - I absolutely love this setup. It works with the factory valve control so it's quiet or loud when you want it. In efficient mode, it's quiet and just slightly louder than stock. I commute in this car daily in that mode. It's full race car loud in Sport+ when you're joyriding and just the right balance between the two in Sport. I was concerned about rasp after the downpipe but the single midpipe keeps the deep aggressive tone that the duals don't have. I highly recommend this setup! They are getting more in stock of the mid-pipe very soon and if interested, use my referral link: https://valvetronic.com/?ref=ZVvd_wADgy1qNQ for a discount! Feel free to ask me any questions and comment below what you think! I'd really appreciate a like and subscribe. More mods and content coming soon! Hint: Whoosh noises Follow @G80_Soom @Phillybimmerclub @Valvetronic on IG! __________________ Now driving:'25 LSB G80 M3 Competition xDrive Also driving: '11 Space Grey E90 335i M-Sport 6MT xDrive '18 Glacier Silver G30 530i xDrive Retired - '24 G80 M3 Comp xDrive, '21 G80 M3 6MT, '16 F30 340i 6MT, '13 F30 335i 6MT
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10-02-2021, 03:51 PM	#2
TrentMeister Colonel 3104 Rep 2,078 Posts Drives: g82 comp Join Date: Jun 2019 Location: Dana Point iTrader: (0)	What's cold start like?
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10-02-2021, 03:59 PM	#3
HeelToeShift Banned 6272 Rep 2,482 Posts Drives: Mine Join Date: Aug 2020 Location: Here iTrader: (4)	Sounds fantastic!
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10-03-2021, 10:16 PM	#6
bimmermann88 Captain 361 Rep 752 Posts Drives: BMW g05 Join Date: Aug 2018 Location: Rochester iTrader: (0)	I would get this setup in a second if it didn't create a CEL!!
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10-03-2021, 11:40 PM	#8
AhsanU i can haz big boost pls ??? 5525 Rep 2,200 Posts Drives: inconspicuous white van Join Date: Jun 2012 Location: Westchester, N.Y. iTrader: (2)	Your clip has literally forced me to buy a G80 - thank you for this! This setup of yours has stock axle back/muffler, correct? I can assume that the G8X exhaust setup similar to the F8X in terms of layout, so it goes DP -> midpipes -> axle back. So if this is how loud it is with catless DP's with a single midpipe, how loud would it be in conjunction with an aftermarket exhaust? Yikers. Either way, thank you again! __________________ @maldives.g80 Gone but not forgotten: G80 M3, 991.1 GT3, F80 M3 ZCP, E46 M3
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10-06-2021, 12:36 AM	#12
Grumpy514 Major 657 Rep 1,141 Posts Drives: 2022 M3X Join Date: Feb 2007 Location: DMV iTrader: (1) Garage List 2022 BMW M3X [0.00] 2014 Toyota 4Runner [0.00]	This is just my speed. I love this!
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10-11-2021, 09:55 AM	#15
02M3ForMe Lieutenant Colonel 4464 Rep 1,660 Posts Drives: BMW Join Date: Mar 2009 Location: USA iTrader: (0)	I ran iPE test pipes with embedded mini-cats like this on a previous car and I passed the OBD2 smog check with it. The relevant monitors were ready and the CEL legitimately off, no tune or software needed. I’m sure it would’ve failed an old-school actual sniff test, though. Visual may be an issue, too (old car had completely flat bottom, nothing exposed underneath). It’s probably enough for a “friendly” shop to pass you in NY.
	Appreciate 0 Quote

10-20-2021, 09:04 AM	#19
Salespunk Lieutenant Colonel 2036 Rep 1,835 Posts Drives: Slow Join Date: Mar 2007 Location: SlowCal iTrader: (0)	Love the sound, but the fact that they complain about the front end on the order page turns me off. Besides the quite strange grille setup, the G80 is a killer new M car, but like most, the sound is lacking.
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10-20-2021, 10:06 AM	#20
F85MTuNED IG: @88jae88 1733 Rep 1,769 Posts Drives: ///Ⓜ️ Join Date: Mar 2015 Location: NY / NJ iTrader: (1)	I can't lie it does sound pretty damn good! I'm not really hearing any rasp. __________________ IM POOR..
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