E92 335i - stock exhaust sound with gutted cats. - BMW 3-Series (E90 E92) Forum

Roy Cormier · 08-20-2012, 08:54 PM

Heres a short video of my E92 335i with gutted cats. I haven't had time to weld up a new exhaust system yet but wanted a little bit more sound out of the car.

Yodaime · 08-20-2012, 09:21 PM

not bad ! Sounds good dude

turb0mike · 08-20-2012, 09:27 PM

Very nice!

Bimmerfan14 · 08-21-2012, 08:22 PM

Did the same to mines sounds real good

E90Company · 08-21-2012, 08:31 PM

How is the turbo sound?

335REGULATION · 08-21-2012, 09:13 PM

Must likely its my Iphone speakers...but did not sounded right.

kbryce · 08-21-2012, 09:30 PM

diggin it

Roy Cormier · 08-23-2012, 11:18 AM

Quote:

Originally Posted by E90Company

How is the turbo sound?

It sounds great. I had a friend take a video of me driving down the road and I could hear the turbine whine out the exhaust pretty good.

Blindside_137 · 08-23-2012, 11:22 AM

love it, not too much, just right

syd · 09-21-2012, 02:16 AM

What did you do exactly to get the gurgle consistently?

Verbatim · 09-21-2012, 03:27 AM

Quote:

Originally Posted by syd

What did you do exactly to get the gurgle consistently?

you mean like this?

syd · 09-21-2012, 07:19 PM

Quote:

Originally Posted by Verbatim

you mean like this?

It Seemed a little bit more predominant in his video; but that could just be the volume. But yes thats what I'm interested in, the description stated he re-tuned the DME to ensure he consistently gets the gurgle.

Verbatim · 09-21-2012, 08:57 PM

Quote:

Originally Posted by syd

It Seemed a little bit more predominant in his video; but that could just be the volume. But yes thats what I'm interested in, the description stated he re-tuned the DME to ensure he consistently gets the gurgle.

it will pop and gurgle for a bit when you downshift or let off the gas with the resonator removed, but if you want it to rumble all the way down the revs.. just hold the gas down a bit

syd · 09-21-2012, 09:01 PM

Quote:

Originally Posted by Verbatim

just don't let off the gas all the way
it will pop and gurgle for a bit when you downshift or let off the gas, but if you want it to rumble all the way down the revs.. just hold the gas down a bit

Thanks for clarifying that!

E90Company · 09-21-2012, 09:05 PM

Quote:

Originally Posted by syd

Thanks for clarifying that!

When you gut all the cats you will get signifigant popping, because unburned fuel is exploding upstream in the exhaust.

Verbatim · 09-21-2012, 09:14 PM

Quote:

Originally Posted by E90Company

When you gut all the cats you will get signifigant popping, because unburned fuel is exploding upstream in the exhaust.

catless will be the biggest difference when it comes to backfiring

syd · 09-21-2012, 09:17 PM

Quote:

Originally Posted by E90Company

When you gut all the cats you will get signifigant popping, because unburned fuel is exploding upstream in the exhaust.

Quote:

Originally Posted by Verbatim

catless will be the biggest difference when it comes to backfiring

I will look into that, Thanks guys!

BMWnation · 09-21-2012, 10:45 PM

Are both cats removed, primary/secondary? Is your car tuned?
Love the popping sound. If you have more details how you accomplished this will be great

JJ. · 09-24-2012, 11:33 AM

Quote:

Originally Posted by BMWnation

Are both cats removed, primary/secondary? Is your car tuned?
Love the popping sound. If you have more details how you accomplished this will be great

+1

VMRWheels · 09-24-2012, 03:13 PM

Very nice. I like the backfiring pop as well.

Roy Cormier · 10-10-2012, 09:05 AM

Looks like I wasn't subscribed to updates from this thread, so I didn't know there were any replies til now. I can't find the exact copy of the map from the video, but if I remember correctly I modified the "Torque Request Tables" in Cobb ATR.

At 0% pedal position requested torque was 0, I increased this a very small amount. The car idled slightly higher as I expected, but the increase was hardly noticeable.

08-20-2012, 08:54 PM	#1
Roy Cormier Enlisted Member Drives: Mitsubishi 3000GT VR4 Join Date: Feb 2012 Location: Green Bay, WI Posts: 43 iTrader: (0)	E92 335i - stock exhaust sound with gutted cats. Heres a short video of my E92 335i with gutted cats. I haven't had time to weld up a new exhaust system yet but wanted a little bit more sound out of the car. __________________ E92 BMW 335i - Single Turbo: Borg Warner 9179 \| roycormier.net \| My YouTube channel If you can leave black marks on a straight from the time you exit a corner till the time you brake for the next turn....... Then, you have enough horsepower. Last edited by Roy Cormier; 10-10-2012 at 08:46 AM.
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08-20-2012, 09:27 PM	#3
turb0mike First Lieutenant ///M killer Drives: 2010 BMW 335i Join Date: Jan 2010 Location: Santa Barbara Posts: 2,508 iTrader: (0) Garage List 2010 BMW 335i [4.45]	Very nice! __________________ turb0mike - Activities Chair BMW CCA - Client Advisor Santa Monica BMW Official e90Post Track Time Thread ----->>> http://www.e90post.com/forums/showth...5#post11039095

08-21-2012, 08:31 PM	#5
E90Company Major General Drives: 335i Join Date: Mar 2012 Location: SFL Posts: 5,693 iTrader: (2)	How is the turbo sound? __________________ FBO N54 6AT

08-21-2012, 09:13 PM	#6
335REGULATION Second Lieutenant Drives: 2009 E90 LCI M-Package 6spd Join Date: Jan 2009 Location: Puerto Rico Posts: 240 iTrader: (0)	Must likely its my Iphone speakers...but did not sounded right. __________________ 2009 LCI E90/N54/Space Gray/M-Package/Sport Premium Package/6MT w BMW Performance Shifter/Black Dakota Leather/Wood Trim/Navigation/PDC/Comfort Access/

08-21-2012, 09:30 PM	#7
kbryce I have to return some video tapes Drives: e92 335i 6mt Join Date: Apr 2011 Location: Albany/NYC Posts: 2,717 iTrader: (0)	diggin it __________________ 13 Black Sapphire e92 335i - 6mt - VMR VB3 - Black Kidneys - BMS Performance Intake - Muffler Delete - Cyba Scoops 10 Le Mans Blue e92 335i - 09 Monaco Blue e92 328i xdrive - 07 Sparkling Graphite e92 328xi

08-21-2012, 08:22 PM	#4
Bimmerfan14 Private First Class Drives: 2009 bmw 335 e92 Join Date: May 2012 Location: Ct Posts: 198 iTrader: (0)	Did the same to mines sounds real good

08-23-2012, 11:22 AM	#9
Blindside_137 Brigadier General Drives: '09 E93 Space Gray 328 Join Date: Jun 2010 Location: Raleigh, NC Posts: 3,162 iTrader: (1)	love it, not too much, just right __________________ M3 Edition Grilles\|Painted Reflectors\|Matte Black Vinyl Window Trim\|M3 Lip Spoiler\|35% Tint\|19" Satin Black Avant Garde M359\|Lux H8 V3\|OEM Aero Lip\|Cyba

09-21-2012, 02:16 AM	#10
syd Private Drives: 2009 AW/CR e92 335i Join Date: Dec 2011 Location: Alamo,CA Posts: 79 iTrader: (0)	What did you do exactly to get the gurgle consistently? __________________ 2003 JB/IR M3 2009 AW/FR 328i

09-21-2012, 10:45 PM	#18
BMWnation BMWXXX Drives: 335i Space Gray Join Date: Apr 2006 Location: Q-NY Posts: 217 iTrader: (1)	Are both cats removed, primary/secondary? Is your car tuned? Love the popping sound. If you have more details how you accomplished this will be great

09-24-2012, 03:13 PM	#20
VMRWheels BimmerPost Supporting Vendor Drives: BMW Join Date: Jun 2007 Location: Anaheim, CA Posts: 9,910 iTrader: (4) Garage List 2008 5 Series [3.30]	Very nice. I like the backfiring pop as well. __________________ NEW WHEEL MODEL: V721 \| LIVE INVENTORY: V705 V703 V710 \| V710 PICTURE THREAD p. 714-442-7916 extension 103 \| e. kevin.a@velocitymotoring.com \| f. facebook.com/vmrwheels f. flickr.com/vmrwheels

10-10-2012, 09:05 AM	#21
Roy Cormier Enlisted Member Drives: Mitsubishi 3000GT VR4 Join Date: Feb 2012 Location: Green Bay, WI Posts: 43 iTrader: (0)	Looks like I wasn't subscribed to updates from this thread, so I didn't know there were any replies til now. I can't find the exact copy of the map from the video, but if I remember correctly I modified the "Torque Request Tables" in Cobb ATR. At 0% pedal position requested torque was 0, I increased this a very small amount. The car idled slightly higher as I expected, but the increase was hardly noticeable. __________________ E92 BMW 335i - Single Turbo: Borg Warner 9179 \| roycormier.net \| My YouTube channel If you can leave black marks on a straight from the time you exit a corner till the time you brake for the next turn....... Then, you have enough horsepower. Last edited by Roy Cormier; 10-10-2012 at 09:11 AM.

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