Burble with stock DP

Skylerr91 · 03-05-2019, 10:55 PM

I am planning on going stage 1 BM3 soon, I wish I can go stage 2 but im moving to California soon so I cannot go catless. I know with BM3 I can adjust the burbles but if I have a stock downpipe/cat would any increase in the burbles eat the cat? I know turning the aggression up all the way on the stock cat will destroy it but do I have to leave the burbles exactly the same as stock?

TheShadow · 03-05-2019, 11:15 PM

It could, honestly with stock dp and no tune i get burbles with my full AWE exhaust lolol

jmack · 03-06-2019, 12:15 PM

You should be fine with mild burbles. MPPK adds more aggressive burbles than BM3's mild and that still uses the stock DP.

mike@x-ph.com · 03-06-2019, 08:33 PM

I run aggressive burble on my car with stock cat

F30NFifty5 · 03-07-2019, 08:30 AM

Delete your resonator and you'll get more pops and burbles with the stock downpipe.... No drone inside the cabin.. Been running resonator delete for a month now and I don't regret it.

nawfoo · 03-07-2019, 08:57 PM

I have a stock dp with mild burble setting with my bm3 and I barely get any burbles.

Alpine.N55 · 03-07-2019, 09:41 PM

Running MHD burbles (medium aggressiveness for 1.5s @ 2k RPMs) with the stock downpipe, resonator delete, and an electronic cutout. I switch to sport half way through the video which is when the burbles are active.

ceedawg · 03-10-2019, 04:24 PM

Quote:

Originally Posted by Alpine.N55

Running MHD burbles (medium aggressiveness for 1.5s @ 2k RPMs) with the stock downpipe, resonator delete, and an electronic cutout. I switch to sport half way through the video which is when the burbles are active.

SWEET!!!

which cutout did you use? I would do this but closer to the front of the car not far from the dp where the turbo would like this even more.

Alpine.N55 · 03-10-2019, 04:50 PM

Quote:

Originally Posted by ceedawg

SWEET!!!

which cutout did you use? I would do this but closer to the front of the car not far from the dp where the turbo would like this even more.

eBays Finest: https://www.ebay.com/itm/3-Inch-76mm...53.m2749.l2649

Had a buddy get it and install exactly where you're looking to do it, sticks down a little but it does work.

kkkevon · 03-10-2019, 10:28 PM

Quote:

Originally Posted by TheShadow

It could, honestly with stock dp and no tune i get burbles with my full AWE exhaust lolol

Same here.

hudsonryan · 03-11-2019, 12:33 PM

In the BM3 Facebook group I have seen some posts regarding life expectancy with the Stock DP + Burbles. Seems that there have not been many reported 'destroyed' downpipes, but it could be a longer term deal.

Don't go full aggressive and you should be totally fine in the grand scheme of things.

scostu · 06-01-2019, 06:53 PM

Quote:

Originally Posted by mike@x-ph.com

I run aggressive burble on my car with stock cat

How long have you running this setup?

No problems still?

mike@x-ph.com · 06-03-2019, 11:56 AM

Quote:

Originally Posted by scostu

How long have you running this setup?

No problems still?

Couple months, no problems yet.

yoon_209 · 06-03-2019, 12:15 PM

you have a 2015, you can definitely go catless for a couple years, California just passed a new law that exempts new cars from getting a smog for 8 years.

i have a 2013 and was about to get mine removed but i have two years left!

BigJack75 · 06-03-2019, 09:07 PM

Quote:

Originally Posted by Alpine.N55

Running MHD burbles (medium aggressiveness for 1.5s @ 2k RPMs) with the stock downpipe, resonator delete, and an electronic cutout. I switch to sport half way through the video which is when the burbles are active.

What cut out do you have? Any issues with it getting stuck open, closed
or gummed up with carbon? How much was it with all parts installed?

F30boyy · 07-19-2019, 06:15 PM

I have the n20 engine, Ever since deleting my muffler(1st) and resonator (2nd) my car pops and bangs keep getting louder. Also starting to get abit of the rotten egg smell, could this be due to me blowing out my cat slowly? I do drive pretty aggressive (letting car rev out and pop) still have my stock downpipe and no tune

scostu · 07-20-2019, 08:39 AM

Quote:

Originally Posted by F30boyy

I have the n20 engine, Ever since deleting my muffler(1st) and resonator (2nd) my car pops and bangs keep getting louder. Also starting to get abit of the rotten egg smell, could this be due to me blowing out my cat slowly? I do drive pretty aggressive (letting car rev out and pop) still have my stock downpipe and no tune

Doubtful ....everything you have done is after the Catalytic converter.

How many miles?
Are you still on original spark plugs?

Natedixonnn · 06-25-2020, 10:34 PM

I have a 328i just tune to BM3 and at the moment I'm only getting burbles in park and non while driving. I also don't have a cat less downpipe please help

14F30Daily · 06-26-2020, 11:49 AM

Old post but way to revive it. I'm running BM3 stage 1 and get a decent burble with the exhaust open on sport plus. I have stock DP and exhaust.

Conr4d · 06-27-2020, 03:23 AM

Pro Tuning Freaks recommends keeping the burble aggression at 5.6 or below in order to avoid damaging the stock down pipe’s cat.

jcordier · 07-01-2020, 11:40 PM

Quote:

Originally Posted by mike@x-ph.com

I run aggressive burble on my car with stock cat

How long of a duration and what setting? I want to do the same thing. But my stock cat is at about 99k miles right now. Thank you in advance

jcordier · 07-01-2020, 11:42 PM

Quote:

Originally Posted by Conr4d

Pro Tuning Freaks recommends keeping the burble aggression at 5.6 or below in order to avoid damaging the stock down pipe’s cat.

Emu wonder what OTS is because I have it set there but I'd rather it not last so long. Maybe 5.8 agg? And 2 seconds?

03-05-2019, 10:55 PM	#1
Skylerr91 New Member 3 Rep 11 Posts Drives: 2015 f32 435i Join Date: May 2018 Location: New York iTrader: (0)	Burble with stock DP I am planning on going stage 1 BM3 soon, I wish I can go stage 2 but im moving to California soon so I cannot go catless. I know with BM3 I can adjust the burbles but if I have a stock downpipe/cat would any increase in the burbles eat the cat? I know turning the aggression up all the way on the stock cat will destroy it but do I have to leave the burbles exactly the same as stock?
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03-05-2019, 11:15 PM	#2
TheShadow Lieutenant 277 Rep 492 Posts Drives: 335i M sport Join Date: Aug 2018 Location: louisiana iTrader: (1)	It could, honestly with stock dp and no tune i get burbles with my full AWE exhaust lolol
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03-06-2019, 12:15 PM	#3
jmack Private First Class 193 Rep 187 Posts Drives: F36 440i / C6 Grand Sport Join Date: Oct 2018 Location: NY iTrader: (0)	You should be fine with mild burbles. MPPK adds more aggressive burbles than BM3's mild and that still uses the stock DP.
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03-06-2019, 08:33 PM	#4
mike@x-ph.com BimmerPost Supporting Vendor 13133 Rep 141,384 Posts Drives: 2007 e92 335i / 2013 F30 328 Join Date: Sep 2013 Location: Las Vegas iTrader: (20)	I run aggressive burble on my car with stock cat __________________ STIMULUS SALE - UP TO 70%OFF XPH CARBON ** 10% OFF VARGAS TURBO Phone 725-221-5267 \|\| website www.x-ph.com
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03-07-2019, 08:30 AM	#5
F30NFifty5 Private First Class 57 Rep 176 Posts Drives: F30 335i XDrive 6mt / e83 X3 Join Date: Nov 2018 Location: Queens, New York iTrader: (0)	Delete your resonator and you'll get more pops and burbles with the stock downpipe.... No drone inside the cabin.. Been running resonator delete for a month now and I don't regret it.
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03-07-2019, 08:57 PM	#6
nawfoo Second Lieutenant 94 Rep 230 Posts Drives: 2017 m240i Join Date: Jan 2019 Location: Las Vegas iTrader: (0)	I have a stock dp with mild burble setting with my bm3 and I barely get any burbles.
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03-07-2019, 09:41 PM	#7
Alpine.N55 Private 27 Rep 62 Posts Drives: 2015 BMW 335i Join Date: Jan 2019 Location: California iTrader: (1)	Running MHD burbles (medium aggressiveness for 1.5s @ 2k RPMs) with the stock downpipe, resonator delete, and an electronic cutout. I switch to sport half way through the video which is when the burbles are active. __________________ 2015 BMW 335i FBO Full mod list: www.n55.life @alpine.n55
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03-11-2019, 12:33 PM	#11
hudsonryan Enlisted Member 6 Rep 42 Posts Drives: 2015 335i Join Date: Mar 2019 Location: Washington, DC iTrader: (0)	In the BM3 Facebook group I have seen some posts regarding life expectancy with the Stock DP + Burbles. Seems that there have not been many reported 'destroyed' downpipes, but it could be a longer term deal. Don't go full aggressive and you should be totally fine in the grand scheme of things.
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06-03-2019, 12:15 PM	#14
yoon_209 Masterchief 271 Rep 854 Posts Drives: 13' BMW 335i Join Date: Aug 2016 Location: Irvine, CA iTrader: (0)	you have a 2015, you can definitely go catless for a couple years, California just passed a new law that exempts new cars from getting a smog for 8 years. i have a 2013 and was about to get mine removed but i have two years left! __________________ BMS Intake \| ER CP \| VRSF FMIC & DP \| MPE \| BM3 \| Vorsteiner VFF-03 \| H&R Sport \| CF Everythang
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07-19-2019, 06:15 PM	#16
F30boyy Registered 0 Rep 1 Posts Drives: 2012 F30 328i rwd Join Date: Jul 2019 Location: Ontario iTrader: (0)	Burbles getting LOUDER I have the n20 engine, Ever since deleting my muffler(1st) and resonator (2nd) my car pops and bangs keep getting louder. Also starting to get abit of the rotten egg smell, could this be due to me blowing out my cat slowly? I do drive pretty aggressive (letting car rev out and pop) still have my stock downpipe and no tune
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06-25-2020, 10:34 PM	#18
Natedixonnn Registered 0 Rep 3 Posts Drives: BMW 328i Join Date: Jun 2020 Location: Pottsville iTrader: (0)	BM3 stage 1 93 oct n20 no burbles I have a 328i just tune to BM3 and at the moment I'm only getting burbles in park and non while driving. I also don't have a cat less downpipe please help
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06-26-2020, 11:49 AM	#19
14F30Daily Enlisted Member 8 Rep 49 Posts Drives: 2014 335i M-Sport Join Date: Mar 2020 Location: USA iTrader: (0)	Old post but way to revive it. I'm running BM3 stage 1 and get a decent burble with the exhaust open on sport plus. I have stock DP and exhaust. __________________ 2014 335i M-Sport, CTS intake, VRSF FMIC, VRSF CP, BM3 stage 1
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06-27-2020, 03:23 AM	#20
Conr4d Private 15 Rep 71 Posts Drives: 2016 M235i Join Date: Jan 2020 Location: Phoenix, AZ iTrader: (0)	Pro Tuning Freaks recommends keeping the burble aggression at 5.6 or below in order to avoid damaging the stock down pipe’s cat. Attached Images __________________ 2016 M235i Mineral Gray Metallic - Dinan Intake \| Evolution ITB & TIC Charge Pipes \| Evolution Intercooler \| TurboSmart Diverter Valve \| Evolution Down Pipe \| Dinan Resonator Delete Mid Pipe \| Dinan Exhaust \| BM3 Stage 2 93 Octane \| NGK 2-Step Colder Plugs \| xHP Stage 3 Trans Flash \| M Performance Rotors \| Autotecknic Carbon Mirrors \| RKP Carbon Trunk Lip Spoiler \| M Performance Carbon Shifter \| M Performance LED Steering Wheel
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