Just bought an E91, exhaust suggestions?

_ej_ · 11-03-2025, 03:15 PM

I've got a Stromung exhaust on my E36 and I'd love a similar tone and sound level. Loudish but not obnoxious with nice off throttle burble.

What's out there that you guys like? I originally was hoping to get another Stromung but it looks like they only make it for the e92.

M-technik-3 · 11-03-2025, 05:21 PM

I and many on the sight have the factory MPE system. I think Active Autowerk's still makes one for our car.

I have a Stromung on my E30 M3 and yes they are nice sounding exhausts.

_ej_ · 11-04-2025, 10:00 AM

Quote:

Originally Posted by M-technik-3

I and many on the sight have the factory MPE system. I think Active Autowerk's still makes one for our car.

I have a Stromung on my E30 M3 and yes they are nice sounding exhausts.

Do you think a resonator delete is needed to get those burbles on downshifts and when you go off throttle or will just a sportier back box get me there?

M-technik-3 · 11-04-2025, 05:16 PM

Probably yes and a tune. Mine, I kept the resonator because I did not want the pops and bangs. I like a little exhaust but not overbearing. My E36 M3 has a Remus Cat back and it was too quiet so I had a UUC System U that I put on and that was significantly louder.

StradaRedlands · 11-04-2025, 06:24 PM

Spendy, but Supersprint is always an option.

https://www.supersprint.com/en-us/sp...2006-2008.aspx

M-technik-3 · 11-04-2025, 07:22 PM

Quote:

Originally Posted by StradaRedlands

Spendy, but Supersprint is always an option.

https://www.supersprint.com/en-us/sp...2006-2008.aspx

Ouch that some serious change and add some tariff's too.

StradaRedlands · 11-04-2025, 09:15 PM

Quote:

Originally Posted by M-technik-3

Ouch that some serious change and add some tariff's too.

Only the best lol!

Phil325i · 11-05-2025, 05:22 AM

Have you considerd Eisenmann?

https://eisenmann-exhaust-systems.de/en/shop/

PureE92 · 11-05-2025, 08:27 AM

The turner exhaust sounds almost like the bmw PE but for 1/3 the price. Great option imo.

_ej_ · 11-06-2025, 10:32 AM

Quote:

Originally Posted by PureE92

The turner exhaust sounds almost like the bmw PE but for 1/3 the price. Great option imo.

The Scorpion back box?

BReif61 · 11-06-2025, 11:10 AM

I have the Active Autowerke 'gen 2' axle back (which has the little resonator dongle thing to eliminate drone). Very happy with it.

mattanderson · 11-06-2025, 01:46 PM

Rogue makes nice stuff and their Ikon muffler looks OE-ish.

If I hadn't lucked into finding a PE, that would be on my short list.

If money is no object, I would consider the Laptorr.

Bad Rattle · 11-12-2025, 03:47 PM

I ordered Laptorr for my 06 330i. Gonna be about a 4 month wait.

mattanderson · 11-13-2025, 08:47 PM

Quote:

Originally Posted by Bad Rattle

I ordered Laptorr for my 06 330i. Gonna be about a 4 month wait.

You'll have to share when you get it!

busta604 · 11-14-2025, 01:56 AM

I have a laptorr. Worth the wait and every penny

mattanderson · 11-15-2025, 01:44 PM

Quote:

Originally Posted by busta604

I have a laptorr. Worth the wait and every penny

Go on . . .

Pardon the obvious questions:

1) Any drone?
2) How is the volume level for normal daily driving?

Have you run any other setups to compare to?

There aren't too many detailed first-hand accounts of the Laptorr out there.

busta604 · 11-15-2025, 05:35 PM

No drone at all. I went with comfort, not sport, as this is my daily and I can't stand drone. It can be driven quietly with gentle throttle and low rpm. It is not loud in the cabin. In fact, I wish it was louder at 5000+ rpm. Made me wonder if I should have gone with sport instead.

Comfort is a cat back, equal length system which deletes the secondary cats. There is a resonator which I believe is different from that of the sport, if sport has one at all. i was told that the resonator was the difference between comfort and sport.

busta604 · 11-15-2025, 05:38 PM

Here are some photos of my install.
https://www.bimmerpost.com/forums/sh...php?p=31435488

you can find some sound clips on my IG. They're mostly recorded from the interior. The intake (euro intake, K&n filter, lid removed) is equally loud so it's a perfect balance between front and back.

https://www.instagram.com/328itourin...hrdG5nOG00bnht

This one was a GoPro mounted outside. I think I was in 3rd gear which sounds so good at high rev under load:
https://www.instagram.com/reel/DDF-R...d6ODQwMHY0cQ==

PKlauser · 11-18-2025, 09:37 PM

Interesting, looks like comfort isn't an option on their site anymore.

I'm planning on doing headers, so losing the secondary cats would be a bummer.

busta604 · Yesterday, 04:17 PM

Ya, but I wonder if you go with sport if headers would be too loud. Since comfort is quiet enough for headers, I'm considering high flow cat headers rather than catless.

11-03-2025, 03:15 PM	#1
_ej_ New Member 0 Rep 9 Posts Drives: 1997 BMW 328is, 2019 VW GTI Join Date: Sep 2025 Location: Eastern PA iTrader: (0)	Just bought an E91, exhaust suggestions? I've got a Stromung exhaust on my E36 and I'd love a similar tone and sound level. Loudish but not obnoxious with nice off throttle burble. What's out there that you guys like? I originally was hoping to get another Stromung but it looks like they only make it for the e92.
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11-03-2025, 05:21 PM	#2
M-technik-3 Colonel 3483 Rep 2,048 Posts Drives: E30 M3, E36 M3, 328iT, 335i Join Date: Mar 2020 Location: western Ma iTrader: (0) Garage List 1995 M3 [9.33] 2007 E91 [8.17] 1988 M3 [9.60]	I and many on the sight have the factory MPE system. I think Active Autowerk's still makes one for our car. I have a Stromung on my E30 M3 and yes they are nice sounding exhausts.
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11-04-2025, 05:16 PM	#4
M-technik-3 Colonel 3483 Rep 2,048 Posts Drives: E30 M3, E36 M3, 328iT, 335i Join Date: Mar 2020 Location: western Ma iTrader: (0) Garage List 1995 M3 [9.33] 2007 E91 [8.17] 1988 M3 [9.60]	Probably yes and a tune. Mine, I kept the resonator because I did not want the pops and bangs. I like a little exhaust but not overbearing. My E36 M3 has a Remus Cat back and it was too quiet so I had a UUC System U that I put on and that was significantly louder.
	Appreciate 1 StradaRedlands9709.50 Quote

11-04-2025, 06:24 PM	#5
StradaRedlands Major General 9710 Rep 6,068 Posts Drives: 2006 BMW 330i MT Join Date: Dec 2021 Location: SoCal iTrader: (6) Garage List 2006 BMW 330i [8.03] 2007 BMW 328i [8.83] 2013 BMW X5 35i [8.43] 2009 BMW 328i Touri ... [8.50] 2011 BMW 528i [9.07]	Spendy, but Supersprint is always an option. https://www.supersprint.com/en-us/sp...2006-2008.aspx
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11-05-2025, 05:22 AM	#8
Phil325i Brigadier General 688 Rep 3,288 Posts Drives: E92 325i MSport Coupe Join Date: Apr 2012 Location: UK South East iTrader: (1) Garage List 2009 BMW 325i Coupe [6.00]	Have you considerd Eisenmann? https://eisenmann-exhaust-systems.de/en/shop/ __________________ E92 pre-LCI 325i - Ohlins R&T; H&R spacers; M3 strut brace; Swift thrust sheets; 3 x chassis braces; diff brace; N53 V-brace with cross bar; 034 subframe inserts; BMS clutch stop; BMS CDV; RE g/box mounts; Delrin shift bushes; Saikoumichi OCC; Cyba scoops; BMW Perf Exhaust; HEL s/steel brake hoses; M3 rear spoiler; Recaro Sportster CSs; M3 white dash LEDs; LED Angels; LED side repeaters; BMW Perf black grille; CSL reps; SSDD carbon diffuser; Monster Wrap black roof/clear front
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11-05-2025, 08:27 AM	#9
PureE92 First Lieutenant 104 Rep 342 Posts Drives: E92 Join Date: Sep 2012 Location: Texas iTrader: (0)	The turner exhaust sounds almost like the bmw PE but for 1/3 the price. Great option imo.
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11-06-2025, 11:10 AM	#11
BReif61 Private 59 Rep 71 Posts Drives: 2011 E91, 2008 E83 Join Date: Jul 2017 Location: Bel Air, MD iTrader: (0) Garage List 2011 BMW 328i E91 [0.00]	I have the Active Autowerke 'gen 2' axle back (which has the little resonator dongle thing to eliminate drone). Very happy with it. __________________ 2011 Unicorn
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11-06-2025, 01:46 PM	#12
mattanderson First Lieutenant 421 Rep 309 Posts Drives: 2007 E92 328i Join Date: Mar 2023 Location: San Diego iTrader: (0)	Rogue makes nice stuff and their Ikon muffler looks OE-ish. If I hadn't lucked into finding a PE, that would be on my short list. If money is no object, I would consider the Laptorr.
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11-12-2025, 03:47 PM	#13
Bad Rattle Registered 42 Rep 20 Posts Drives: 06 330i E90 Join Date: May 2025 Location: Contra Costa iTrader: (0)	I ordered Laptorr for my 06 330i. Gonna be about a 4 month wait.
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11-14-2025, 01:56 AM	#15
busta604 Enlisted Member 88 Rep 50 Posts Drives: 2009 BMW 328i xDrive Touring Join Date: May 2021 Location: Vancouver, Canada iTrader: (0)	I have a laptorr. Worth the wait and every penny Last edited by busta604; 11-14-2025 at 02:10 AM..
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11-15-2025, 05:35 PM	#17
busta604 Enlisted Member 88 Rep 50 Posts Drives: 2009 BMW 328i xDrive Touring Join Date: May 2021 Location: Vancouver, Canada iTrader: (0)	No drone at all. I went with comfort, not sport, as this is my daily and I can't stand drone. It can be driven quietly with gentle throttle and low rpm. It is not loud in the cabin. In fact, I wish it was louder at 5000+ rpm. Made me wonder if I should have gone with sport instead. Comfort is a cat back, equal length system which deletes the secondary cats. There is a resonator which I believe is different from that of the sport, if sport has one at all. i was told that the resonator was the difference between comfort and sport. Last edited by busta604; 11-17-2025 at 03:39 PM..
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11-15-2025, 05:38 PM	#18
busta604 Enlisted Member 88 Rep 50 Posts Drives: 2009 BMW 328i xDrive Touring Join Date: May 2021 Location: Vancouver, Canada iTrader: (0)	Here are some photos of my install. https://www.bimmerpost.com/forums/sh...php?p=31435488 you can find some sound clips on my IG. They're mostly recorded from the interior. The intake (euro intake, K&n filter, lid removed) is equally loud so it's a perfect balance between front and back. https://www.instagram.com/328itourin...hrdG5nOG00bnht This one was a GoPro mounted outside. I think I was in 3rd gear which sounds so good at high rev under load: https://www.instagram.com/reel/DDF-R...d6ODQwMHY0cQ== Last edited by busta604; 11-15-2025 at 05:52 PM..
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11-18-2025, 09:37 PM	#19
PKlauser New Member 15 Rep 16 Posts Drives: E91, E46 M3, E30 Join Date: Jul 2024 Location: Charlottesville, VA iTrader: (0)	Interesting, looks like comfort isn't an option on their site anymore. I'm planning on doing headers, so losing the secondary cats would be a bummer.
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Yesterday, 04:17 PM	#20
busta604 Enlisted Member 88 Rep 50 Posts Drives: 2009 BMW 328i xDrive Touring Join Date: May 2021 Location: Vancouver, Canada iTrader: (0)	Ya, but I wonder if you go with sport if headers would be too loud. Since comfort is quiet enough for headers, I'm considering high flow cat headers rather than catless.
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