F30POST
F30POST
2012-2015 BMW 3-Series and 4-Series Forum
BMW Garage BMW Meets Register Search Today's Posts Mark Forums Read
BMW 3-Series and 4-Series Forum (F30 / F32) | F30POST > Technical Forums > N55 Turbo Engine / Drivetrain / Exhaust Modifications > How to make N55 355i sound like a 340i with MPPSK?
GetBMWParts
Post Reply
 
Thread Tools Search this Thread
      12-18-2018, 12:14 AM   #1
ctbear
Private First Class
21
Rep
173
Posts

Drives: 2015 335i m-sport
Join Date: Dec 2018
Location: LA

iTrader: (0)

How to make N55 355i sound like a 340i with MPPSK?

Every since I whipped around a 340i at a bmw event, I've wanted my n55 335i to sound like a 340i with MPPSK. What's the closest way to get to that sweet sweet growl, burble, and snap crackle and pop without any droning and a quiet mode when desired?
Appreciate 0
      12-18-2018, 05:50 AM   #2
Mike.
Mike: Everyone's Pal
Mike.'s Avatar
No_Country
1875
Rep
3,004
Posts

Drives: F80 M3
Join Date: May 2013
Location: Eastern Long Island

iTrader: (5)

Garage List
2013 BMW 335xi  [5.00]
Get a 340i
__________________

Alpine MSS Stage 2+ Flex Fuel tune|MST Intakes|VRSF Single Mid Pipe|Agency Power Intercooler|VTT Full solution crank hub fix
Appreciate 3
IK6SPEED4338.50
Ristau79.50
ceedawg457.00
      12-18-2018, 06:51 AM   #3
Polo08816
Brigadier General
1304
Rep
3,489
Posts

Drives: 2014 335i M Sport
Join Date: Sep 2010
Location: MD

iTrader: (0)

Quote:
Originally Posted by ctbear View Post
Every since I whipped around a 340i at a bmw event, I've wanted my n55 335i to sound like a 340i with MPPSK. What's the closest way to get to that sweet sweet growl, burble, and snap crackle and pop without any droning and a quiet mode when desired?
Engine swap.
Appreciate 0
      12-18-2018, 11:18 AM   #4
Insane435
Major
Insane435's Avatar
United_States
278
Rep
1,042
Posts

Drives: 435ix M Sport EWG
Join Date: Jul 2016
Location: Michigan

iTrader: (1)

Catless downpipe, flash tune, dial in burbles so they are not too extreme. You will sound better than a MPPSK 340.
__________________
2014 EBII 435ix - OEM Front pipe + SSS2 + VRSF Race, Evolution Racewerks Downpipe - Chargepipe - Intercooler, Bootmod3 7.1, xHP Stage 3 Trans Tune, NGK 97506's, AFE Dry Filter, KW V1, Forgestar F14 19s, Pilot 4S, M Performance Brakes, M Power Pads
2011 BSM 328ix & 2018 LBB X4M40i
Appreciate 5
      12-18-2018, 11:19 AM   #5
ronanz
Gettin It Figured Out
ronanz's Avatar
United_States
1775
Rep
2,670
Posts

Drives: 435i FBO PS2 bm3 w/ options
Join Date: Jul 2014
Location: Southwest Region

iTrader: (3)

Quote:
Originally Posted by Insane435 View Post
Catless downpipe, flash tune, dial in burbles so they are not too extreme. You will sound better than a MPPSK 340.

This ^^

.
__________________
.

My Build Thread can be found HERE
Appreciate 0
      12-18-2018, 11:42 AM   #6
F32Fleet
Major General
F32Fleet's Avatar
United_States
2520
Rep
9,274
Posts

Drives: 2015 435i
Join Date: May 2005
Location: Southeastern US

iTrader: (0)

MPE with the MPPK?
__________________
"Drive more, worry less. "

435i, MPPK, MPE, M-Sport Line
Appreciate 0
      12-18-2018, 01:44 PM   #7
ctbear
Private First Class
21
Rep
173
Posts

Drives: 2015 335i m-sport
Join Date: Dec 2018
Location: LA

iTrader: (0)

Quote:
Originally Posted by Insane435 View Post
Catless downpipe, flash tune, dial in burbles so they are not too extreme. You will sound better than a MPPSK 340.
Afraid it would resort to a catless downpipe. Being in CA, that's going to be troublesome / the fumes right?
Appreciate 0
      12-18-2018, 02:12 PM   #8
ronanz
Gettin It Figured Out
ronanz's Avatar
United_States
1775
Rep
2,670
Posts

Drives: 435i FBO PS2 bm3 w/ options
Join Date: Jul 2014
Location: Southwest Region

iTrader: (3)

Quote:
Originally Posted by ctbear View Post
Afraid it would resort to a catless downpipe. Being in CA, that's going to be troublesome / the fumes right?

You're not trying hard enough. As "progressive" as CA is...make up a pronoun, slap it on and say your downpipe "identifies" with your car....problem solved.


You're welcome ..

.
__________________
.

My Build Thread can be found HERE
Appreciate 1
f32_027132.00
      12-18-2018, 02:21 PM   #9
ctbear
Private First Class
21
Rep
173
Posts

Drives: 2015 335i m-sport
Join Date: Dec 2018
Location: LA

iTrader: (0)

Quote:
Originally Posted by ronanz View Post
You're not trying hard enough. As "progressive" as CA is...make up a pronoun, slap it on and say your downpipe "identifies" with your car....problem solved.


You're welcome ..

.
I don't think the smog guys or the popo are that liberal...
Appreciate 0
      12-18-2018, 02:25 PM   #10
GatorF30
Lieutenant
383
Rep
564
Posts

Drives: EBII F30
Join Date: Nov 2016
Location: Florida

iTrader: (3)

Mount speakers outside of it and play the sounds of an 340i with MPPSK accelerating at full throttle every time you hit the gas.
Appreciate 0
      12-18-2018, 03:38 PM   #11
redbullfan
Lieutenant
redbullfan's Avatar
United_States
121
Rep
452
Posts

Drives: 2013 335i xDrive Luxury Line
Join Date: Aug 2015
Location: New Jersey

iTrader: (0)

I wana know how to get that deep sound that b58 gives as well!
__________________
2013 335i XDrive Luxury Line

Appreciate 0
      12-18-2018, 06:26 PM   #12
XxThe_RemedyXx
Colonel
Greece
712
Rep
2,164
Posts

Drives: 2014 335i XDrive
Join Date: Aug 2009
Location: Westchester, NY

iTrader: (0)

I might be biased but I like the way my N55 sounds over the 340
__________________
'14 335 xDrive EWG FBO - VRSF Chargepipe - VRSF Catless Downpipe - AA Intercooler - MPE - BM3 Stage 2 E30 OTS - R1 Concepts Front/Rear Geomet Cross Drilled and Slotted Rotors - xHP Stage 3 8AT
Appreciate 0
      12-18-2018, 07:24 PM   #13
zinner
Major
zinner's Avatar
452
Rep
1,008
Posts

Drives: `17 X5 35d/`15 335i/`10 335d
Join Date: Oct 2014
Location: Raleigh, NC

iTrader: (0)

tape a 5 dollar bill over the passenger side exhaust tip. Bam! 340
Appreciate 0
      12-18-2018, 08:01 PM   #14
Antec800
Second Lieutenant
77
Rep
280
Posts

Drives: 340i x drive
Join Date: Apr 2017
Location: Michigan

iTrader: (0)

Quote:
Originally Posted by XxThe_RemedyXx View Post
I might be biased but I like the way my N55 sounds over the 340
Deff not the n55 exhaust note doesn’t hold a candle the to the b58 unfortunately
Appreciate 0
      12-19-2018, 09:25 AM   #15
Insane435
Major
Insane435's Avatar
United_States
278
Rep
1,042
Posts

Drives: 435ix M Sport EWG
Join Date: Jul 2016
Location: Michigan

iTrader: (1)

Quote:
Originally Posted by Antec800 View Post
Deff not the n55 exhaust note doesn’t hold a candle the to the b58 unfortunately
Idk about that. Based on the videos i see theyre the same.

Maybe stock v stock the b58 is better?

Be cool to compare in person. Both sound great, better than the s55.
__________________
2014 EBII 435ix - OEM Front pipe + SSS2 + VRSF Race, Evolution Racewerks Downpipe - Chargepipe - Intercooler, Bootmod3 7.1, xHP Stage 3 Trans Tune, NGK 97506's, AFE Dry Filter, KW V1, Forgestar F14 19s, Pilot 4S, M Performance Brakes, M Power Pads
2011 BSM 328ix & 2018 LBB X4M40i
Appreciate 0
      12-19-2018, 10:16 AM   #16
XxThe_RemedyXx
Colonel
Greece
712
Rep
2,164
Posts

Drives: 2014 335i XDrive
Join Date: Aug 2009
Location: Westchester, NY

iTrader: (0)

Quote:
Originally Posted by Antec800 View Post
Deff not the n55 exhaust note doesn’t hold a candle the to the b58 unfortunately
Yeah that's not the case. The B58 is a great engine and sounds amazing, but IMO an N55 FBO with MPE takes the cake
__________________
'14 335 xDrive EWG FBO - VRSF Chargepipe - VRSF Catless Downpipe - AA Intercooler - MPE - BM3 Stage 2 E30 OTS - R1 Concepts Front/Rear Geomet Cross Drilled and Slotted Rotors - xHP Stage 3 8AT
Appreciate 0
      12-19-2018, 05:34 PM   #17
Logicoeur
Lieutenant Colonel
Logicoeur's Avatar
728
Rep
1,624
Posts

Drives: F30 335i xDrive
Join Date: Feb 2018
Location: Boston

iTrader: (0)

The engines are basically the same, other than the difference in waste gates, turbine and compressor being a tad larger, and how the charge air is cooled. Exhaust note isn't affected much by the wastegate being electronic, and definitely not by the water to air cooling. The difference in compressor and turbine will change the note minimally because the engine volume is still the same. It's more so the everything axleback.

The lci vehicles use a different exhaust muffler,and baffling. The MPPSK muffler on the 340s looks more like a Fabspeed/IPE muffler layout. In sport the exhaust gases completely circumvent the muffler, whereas the Pre-lci MPE only forces the gases out of 1 or both outlets by way of valving. In either case the pre-lci exhaust gases ALWAYS travel through the muffler and it's baffling.

If you want to sound like MPPSK then go straight pipe axleback. Or find a LCI MPE and swap it in. The inlet is at an slightly different angle but I believe any exhaust shop will be able to handle it.
__________________
F30 335iX | Remus Axleback | 18X9 ET32 19lb TR-1 | 255/40/18 ECS | TMH 75mm 14x1.5 Studs | BMW MPerf LSD | XDelete | Pipercross Filter
Appreciate 0
      12-20-2018, 11:27 AM   #18
ctbear
Private First Class
21
Rep
173
Posts

Drives: 2015 335i m-sport
Join Date: Dec 2018
Location: LA

iTrader: (0)

Quote:
Originally Posted by Logicoeur View Post
The engines are basically the same, other than the difference in waste gates, turbine and compressor being a tad larger, and how the charge air is cooled. Exhaust note isn't affected much by the wastegate being electronic, and definitely not by the water to air cooling. The difference in compressor and turbine will change the note minimally because the engine volume is still the same. It's more so the everything axleback.

The lci vehicles use a different exhaust muffler,and baffling. The MPPSK muffler on the 340s looks more like a Fabspeed/IPE muffler layout. In sport the exhaust gases completely circumvent the muffler, whereas the Pre-lci MPE only forces the gases out of 1 or both outlets by way of valving. In either case the pre-lci exhaust gases ALWAYS travel through the muffler and it's baffling.

If you want to sound like MPPSK then go straight pipe axleback. Or find a LCI MPE and swap it in. The inlet is at an slightly different angle but I believe any exhaust shop will be able to handle it.
Thanks for the informative post. Seems like swapping in a 340i MPE may get me close. Don't want to mess with the cat given CARB smog regulations. I would think there is a also a big difference in tuning with a 340i mppsk that would contribute to that exhaust note too right?

EDIT: Looks like the MPPSK exhaust is a full cat back system with silencer bypass valves...not just a backbox (MPE)

Here's what it sounds like in the new Supra:

https://www.autoblog.com/2018/12/19/...-sounds-video/

:3

Last edited by ctbear; 12-20-2018 at 11:41 AM..
Appreciate 0
      12-20-2018, 11:47 AM   #19
OneGoodStorm
Not 1st = Last
6
Rep
16
Posts

Drives: '13 335i / '13 535 / '18 430GC
Join Date: Aug 2018
Location: Boston

iTrader: (0)

Quote:
Originally Posted by XxThe_RemedyXx View Post
I might be biased but I like the way my N55 sounds over the 340
I'm in the same boat as you.
__________________
2000 BMW 323ci (Sold)
2012 BMW 320i (Sold)
2013 BMW 335xi Sedan
2018 BMW 430xi Gran Coupe
Appreciate 0
      12-20-2018, 02:55 PM   #20
Logicoeur
Lieutenant Colonel
Logicoeur's Avatar
728
Rep
1,624
Posts

Drives: F30 335i xDrive
Join Date: Feb 2018
Location: Boston

iTrader: (0)

Quote:
Originally Posted by ctbear View Post
Quote:
Originally Posted by Logicoeur View Post
The engines are basically the same, other than the difference in waste gates, turbine and compressor being a tad larger, and how the charge air is cooled. Exhaust note isn't affected much by the wastegate being electronic, and definitely not by the water to air cooling. The difference in compressor and turbine will change the note minimally because the engine volume is still the same. It's more so the everything axleback.

The lci vehicles use a different exhaust muffler,and baffling. The MPPSK muffler on the 340s looks more like a Fabspeed/IPE muffler layout. In sport the exhaust gases completely circumvent the muffler, whereas the Pre-lci MPE only forces the gases out of 1 or both outlets by way of valving. In either case the pre-lci exhaust gases ALWAYS travel through the muffler and it's baffling.

If you want to sound like MPPSK then go straight pipe axleback. Or find a LCI MPE and swap it in. The inlet is at an slightly different angle but I believe any exhaust shop will be able to handle it.
Thanks for the informative post. Seems like swapping in a 340i MPE may get me close. Don't want to mess with the cat given CARB smog regulations. I would think there is a also a big difference in tuning with a 340i mppsk that would contribute to that exhaust note too right?

EDIT: Looks like the MPPSK exhaust is a full cat back system with silencer bypass valves...not just a backbox (MPE)

Here's what it sounds like in the new Supra:

https://www.autoblog.com/2018/12/19/...-sounds-video/

:3
Yes. Here's a photo of the MPPSK exhaust for the visual people
Attached Images
  
__________________
F30 335iX | Remus Axleback | 18X9 ET32 19lb TR-1 | 255/40/18 ECS | TMH 75mm 14x1.5 Studs | BMW MPerf LSD | XDelete | Pipercross Filter
Appreciate 2
doodlebro117.50
teapain125.00
      12-24-2018, 10:26 AM   #21
ctbear
Private First Class
21
Rep
173
Posts

Drives: 2015 335i m-sport
Join Date: Dec 2018
Location: LA

iTrader: (0)

Quote:
Originally Posted by Logicoeur View Post
Yes. Here's a photo of the MPPSK exhaust for the visual people
So it acts like a muffler delete when the valves are open...
Appreciate 0
      12-24-2018, 03:07 PM   #22
perryo91
Captain
perryo91's Avatar
Uganda
333
Rep
927
Posts

Drives: 335
Join Date: Apr 2009
Location: Florida

iTrader: (1)

The reason B58 sounds deep is the extra 0.5" downpipe.

If you want to sound close to it go catless, delete resonator, MPE or other well made axleback.

I just got a catless DP for my car and it sounds the tits. VERY minimal drone. 0 drone when I turn my radio up to 25%

My DP is 4" btw so I think that's why its so close.
__________________
Hi
Appreciate 0
Post Reply

Bookmarks

Tags
335, 340, mpe, mppsk, n55

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off



All times are GMT -5. The time now is 06:36 PM.




f30post
Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2021, vBulletin Solutions Inc.
1Addicts.com, BIMMERPOST.com, E90Post.com, F30Post.com, M3Post.com, ZPost.com, 5Post.com, 6Post.com, 7Post.com, XBimmers.com logo and trademark are properties of BIMMERPOST