M235i How to make louder

spencer29 · 01-27-2017, 11:09 AM

Hello I have a bmw m235i and i am looking to make it louder. It is a lease so that means I cannot cut pipes etc. What could some of you recommend?

Powaup · 01-27-2017, 12:08 PM

Quote:

Originally Posted by spencer29

Hello I have a bmw m235i and i am looking to make it louder. It is a lease so that means I cannot cut pipes etc. What could some of you recommend?

I'm in the same boat, you can either do catted downpipes or catless downpipes for more noise but requires a jb4 to remove check engine light.

or you can get a full cat back exhaust, which will not require cutting and won't throw a CEL

mdputnam · 01-27-2017, 12:37 PM

Look at at the BMW parts diagram above. Cut the muffler off at part #9 as per BMW repair manual directions for muffler replacement. Replace the muffler with what ever you want. When it is time to return the car purchase BMW part number 9 (Part Number: 18307560815) and put the original brand new muffler back on. You'll have all original BMW parts and there will not be any modification or repair not specified by BMW.

Benandluna · 01-27-2017, 12:54 PM

Fabspeed Sport Cat doesnt give CEL. talk to Mike, or Bobby from Fabspeed.

I also ordered the the muffler delete. you can easily pop your old one back on before the return. I am on a lease as well, though plan on keeping the car...

I think the sport Cat, and combo it with a nice intake and youll get much more sound.

Shayan55 · 01-27-2017, 01:40 PM

Honestly you will be fine if you cut pipes i have a lease and i have a muffler delete. Unless my SA is just cool

Jeff@TopGearSolutions · 01-27-2017, 02:03 PM

Catless downpipes and or Exhaust such as muffler delete. Depends on how much you can tolerate in terms of loud and drone.

XutvJet · 01-27-2017, 02:32 PM

OEM M-Performance exhaust (i.e., muffler).

OEM BMW M2 lower airbox. It has a big cut out in it and creates a decent amount of induction and turbo noises, but isn't remotely as annoying in terms of volume as an aftermarket intake nor does it create CELs or drivability issues like so many aftermarket intakes do.

Drpoomanchu · 01-28-2017, 08:05 AM

Quote:

Originally Posted by XutvJet

OEM M-Performance exhaust (i.e., muffler).

OEM BMW M2 lower airbox. It has a big cut out in it and creates a decent amount of induction and turbo noises, but isn't remotely as annoying in terms of volume as an aftermarket intake nor does it create CELs or drivability issues like so many aftermarket intakes do.

Do you happen to have a part# on the M2 lower airbox..?

Bee Pee · 01-28-2017, 08:39 AM

Quote:

Originally Posted by Drpoomanchu

Do you happen to have a part# on the M2 lower airbox..?

M2 intake is the whole assembly so v expensive than the functionally identical mppsk lower air box for airbox part [ie no lid], part no. 11122334344.

M2 part no 13717857606

http://www.realoem.com/bmw/enUS/show...99#13717857606

Drpoomanchu · 01-28-2017, 09:55 PM

Quote:

Originally Posted by Bee Pee

Quote:

Originally Posted by Drpoomanchu

Do you happen to have a part# on the M2 lower airbox..?

M2 intake is the whole assembly so v expensive than the functionally identical mppsk lower air box for airbox part [ie no lid], part no. 11122334344.

M2 part no 13717857606

http://www.realoem.com/bmw/enUS/show...99#13717857606

Thnx, thats kind of what i found as well. So 11122334344 can replace our lower airbox..? After looking it shows that not fitting the M235i. Is this only due to it not being the actual production part for the M235i.? If i could snag one for closer to $150 i may pull the trigger ...

BEM-S4 · 01-29-2017, 03:26 PM

M2 exhausts are cheaper than MPE to begin with and starting to show up 2nd hand as those guys go aftermarket. Check with your SA but I'm 99% sure you could easily turn the car back in with that since it's an upgrade from stock.

Bee Pee · 01-29-2017, 03:38 PM

Quote:

Originally Posted by Drpoomanchu

So 11122334344 can replace our lower airbox..?

Yes - I ran one of these on my m135i before going back to Oem and adding AFE scoop.

Quote:

Originally Posted by Drpoomanchu

After looking it shows that not fitting the M235i. Is this only due to it not being the actual production part for the M235i.?

Yes, correct, never a factory fitted part for m235i.

SeanWRT · 01-30-2017, 11:16 AM

Two good ways, you can go for both
1) Resonator delete
2) M2 muffler

BEM-S4 · 01-30-2017, 01:20 PM

Quote:

Originally Posted by SeanWRT

Two good ways, you can go for both
1) Resonator delete
2) M2 muffler

Resonator delete is cheap too $300 installed for the Dinan one. I'm planning to test fit one on my vert next time I take the car in.

mike@x-ph.com · 01-30-2017, 06:51 PM

Catless downpipe and just replace it with the stock one once it is time to return the car

BMWTurbo · 01-31-2017, 07:11 PM

Running m235i with Mppk air box and mperformance exhaust.

spencer29 · 01-31-2017, 08:31 PM

If I cut the muffler off and do a Y pipe from any local muffler shop will it be easy to put muffler back on when I return my lease?

Fabspeed Motorsport · 02-02-2017, 10:26 AM

My first recommendation would be to do our Sport Cat Downpipe first. Our downpipe provides a great bump in power and some great sound as well. From there, our Muffler Bypass Exhaust would take the car up another notch in the sound level. It is hands down my favorite setup for our cars, hence why I run that same setup on my M235i.

MeanMGN_F22 · 02-02-2017, 10:57 AM

Quote:

Originally Posted by mdputnam

Look at at the BMW parts diagram above. Cut the muffler off at part #9 as per BMW repair manual directions for muffler replacement. Replace the muffler with what ever you want. When it is time to return the car purchase BMW part number 9 (Part Number: 18307560815) and put the original brand new muffler back on. You'll have all original BMW parts and there will not be any modification or repair not specified by BMW.

Off topic, but where do you find a repair manual? I cant find one for the life of me. Need to install a DP and this would be helpful. Thanks!

mdputnam · 02-02-2017, 11:41 AM

Quote:

Originally Posted by MeanMGN_F22

Off topic, but where do you find a repair manual? I cant find one for the life of me. Need to install a DP and this would be helpful. Thanks!

Pay your $30 and get the instructions directly from BMW at this website. If you don't want to do that, the Bentley 3 and 4 series 2012 thru 2015 repair manual should get you close enough.

weyland · 04-23-2017, 03:25 PM

Bump - how are people getting on with the M2 lower airbox mod? Worthwhile upgrade?

I would only be doing it for a bit more engine noise...

mdputnam · 04-23-2017, 08:23 PM

I was disappointed with the sound increase. Check out this and this thread.

01-27-2017, 11:09 AM	#1
spencer29 Enlisted Member 34 Rep 49 Posts Drives: BMW M235I Join Date: Nov 2016 Location: los angeles iTrader: (0)	M235i How to make louder Hello I have a bmw m235i and i am looking to make it louder. It is a lease so that means I cannot cut pipes etc. What could some of you recommend?
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01-27-2017, 12:37 PM	#3
mdputnam Lieutenant 289 Rep 556 Posts Drives: 135i & M235i Convertibles Join Date: Dec 2011 Location: SoCal iTrader: (0)	Look at at the BMW parts diagram above. Cut the muffler off at part #9 as per BMW repair manual directions for muffler replacement. Replace the muffler with what ever you want. When it is time to return the car purchase BMW part number 9 (Part Number: 18307560815) and put the original brand new muffler back on. You'll have all original BMW parts and there will not be any modification or repair not specified by BMW.
	Appreciate 0 Quote

01-27-2017, 12:54 PM	#4
Benandluna Lieutenant 126 Rep 424 Posts Drives: 2018 x3 m40i Join Date: Apr 2016 Location: Bay Area iTrader: (0)	Fabspeed Sport Cat doesnt give CEL. talk to Mike, or Bobby from Fabspeed. I also ordered the the muffler delete. you can easily pop your old one back on before the return. I am on a lease as well, though plan on keeping the car... I think the sport Cat, and combo it with a nice intake and youll get much more sound. __________________ 2016 BSM M235i: Fully loaded. Dinan Stage II Tune, Dinan CAI, Fabspeed Sport Cat, Fabspeed Muffler Delete.
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01-27-2017, 01:40 PM	#5
Shayan55 Captain 339 Rep 716 Posts Drives: F90 M5 Join Date: Jun 2016 Location: woodland hills CA iTrader: (1) Garage List 2105 BMW M235I [0.00]	Honestly you will be fine if you cut pipes i have a lease and i have a muffler delete. Unless my SA is just cool __________________ (Sold) M235I Dinan intake, Active Autowerke FMIC, meisterschaft, TCKline coilovers, NT01's, BMS Oil cooler valve, VRSF DP&CP, BM3,StopTech Trophy BBK, Corbeau FX1 Pro seats, AP bar, Bimmerworld V3 Wing, APR Front splitter, Seibon Vented CF Hood 399.8whp on 91oct Hmu on Ig: @n55_shayan
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01-27-2017, 02:03 PM	#6
Jeff@TopGearSolutions 3441 Rep 79,211 Posts Drives: C6 Z06, 09 335i, 10 335xi Join Date: Dec 2008 Location: www.TopGearSolutions.com iTrader: (37)	Catless downpipes and or Exhaust such as muffler delete. Depends on how much you can tolerate in terms of loud and drone.
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01-27-2017, 02:32 PM	#7
XutvJet Major General 5551 Rep 5,369 Posts Drives: 2011 Cayman Base, 2016 M235 Join Date: Mar 2016 Location: Kansas City iTrader: (-1)	OEM M-Performance exhaust (i.e., muffler). OEM BMW M2 lower airbox. It has a big cut out in it and creates a decent amount of induction and turbo noises, but isn't remotely as annoying in terms of volume as an aftermarket intake nor does it create CELs or drivability issues like so many aftermarket intakes do.
	Appreciate 1 BodegaBay27.00 Quote

01-29-2017, 03:26 PM	#11
BEM-S4 Major General 4516 Rep 8,942 Posts Drives: Dinan M235, Dinan Sport Wagon Join Date: Oct 2012 Location: Philadelphia iTrader: (5)	M2 exhausts are cheaper than MPE to begin with and starting to show up 2nd hand as those guys go aftermarket. Check with your SA but I'm 99% sure you could easily turn the car back in with that since it's an upgrade from stock. __________________ 2022 Macan S 2016 F31 328i xDrive Sport Wagon 2006 E46 330ci ZHP Convertible
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01-30-2017, 11:16 AM	#13
SeanWRT Colonel 3179 Rep 2,577 Posts Drives: E90 M3 & F87 M2 Join Date: Sep 2015 Location: Shanghai iTrader: (1)	Two good ways, you can go for both 1) Resonator delete 2) M2 muffler __________________ Lemania 2320
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01-30-2017, 06:51 PM	#15
mike@x-ph.com Joint Chiefs of Staff 24180 Rep 190,777 Posts Drives: 07-335/12-328/18-M4/21-M4CP Join Date: Sep 2013 Location: Las Vegas iTrader: (23)	Catless downpipe and just replace it with the stock one once it is time to return the car __________________ Check out our current sale by clicking on this link! https://x-ph.com/sale/ Phone number 702-494-9435
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01-31-2017, 07:11 PM	#16
BMWTurbo Second Lieutenant 31 Rep 237 Posts Drives: BMW Join Date: Jun 2016 Location: USA iTrader: (0)	Running m235i with Mppk air box and mperformance exhaust. Attached Images
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01-31-2017, 08:31 PM	#17
spencer29 Enlisted Member 34 Rep 49 Posts Drives: BMW M235I Join Date: Nov 2016 Location: los angeles iTrader: (0)	If I cut the muffler off and do a Y pipe from any local muffler shop will it be easy to put muffler back on when I return my lease?
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02-02-2017, 10:26 AM	#18
Fabspeed Motorsport 1006 Rep 1,653 Posts Drives: BMW M235i Join Date: May 2015 Location: Fort Washington, PA iTrader: (0)	My first recommendation would be to do our Sport Cat Downpipe first. Our downpipe provides a great bump in power and some great sound as well. From there, our Muffler Bypass Exhaust would take the car up another notch in the sound level. It is hands down my favorite setup for our cars, hence why I run that same setup on my M235i.
	Appreciate 0 Quote

04-23-2017, 03:25 PM	#21
weyland Private First Class 75 Rep 156 Posts Drives: 2014 M235i Join Date: Feb 2016 Location: UK iTrader: (0)	Bump - how are people getting on with the M2 lower airbox mod? Worthwhile upgrade? I would only be doing it for a bit more engine noise... __________________ Litchfield built M235i - Astoril blue, 6MT, Custom Akrapovic exhaust, AST 5100 suspension, Quaife differential, Eibach anti roll bars, Radtec intercooler, custom trimmed steering wheel, Litchfield remap
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04-23-2017, 08:23 PM	#22
mdputnam Lieutenant 289 Rep 556 Posts Drives: 135i & M235i Convertibles Join Date: Dec 2011 Location: SoCal iTrader: (0)	I was disappointed with the sound increase. Check out this and this thread.
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