Bootmod3 Burble with Catted Downpipe

Obi-Wan · 07-25-2018, 06:43 PM

This might have been discussed in other threads and if it has, I apologize. I'm currently running BM3 stage 2 AGG with burble set to custom level 4 aggression. I love how it sounds but I don't want to run it if it will have a negative impact on my car. I have read in some posts about running burble with either the stock downpipe or a high flow catted downpipe (I have the Fabspeed sport cat DP) and how it shouldn't be done. I have never seen a definitive answer on the subject so I decided to ask Performance Tuning Freaks. I asked if I it's okay run the AGG map with burble with a high flow cat or should you use a catless downpipe and if the burble setting would affect fuel economy. They stated "Burble will negatively impact your fuel economy. It will be a noticable difference. We don't recommend running AGG with catted DP. You run the risk of having pieces of your cat being spat out."

Again, this may be old news but I'm just passing it along. I'll be flashing my car tonight to the non-AGG stage 2 map.

yoon_209 · 07-25-2018, 06:54 PM

burbles are nice occasionally but on level 4, that must have sounded super rice

JaredG_F30 · 07-26-2018, 08:18 AM

Aggressive burbles on a catted DP will eventually melt your catalyst. The burbles and bangs you are hearing are little explosions in your exhaust manifold which is not good for the cat.

reddemon73 · 08-03-2018, 09:54 AM

Thanks for the info. Is there a way to dialed down the AGG level on OTS stage 2 flash?

WajahatM · 08-03-2018, 11:34 AM

Theres a cog wheel in the top left corner that allows you to change the aggressiveness, duration, etc of theburble. It's found in the map you want to change.

reddemon73 · 08-04-2018, 08:27 AM

I checked with the vendor and he stated the AGG option will not ruin aftermarket catted DP. In my particular case, the FB catted DP.

Obi-Wan · 08-04-2018, 06:16 PM

Honestly, I have noticed that my car has burbles on the non-AGG stage 2 map when I have the car in sport and sport plus. It’s not as insane sounding but it still sounds great. I’ll try and post a video soon.

XxThe_RemedyXx · 08-04-2018, 07:10 PM

Stupid question but why no Stage 1 AGG MAP?

JaredG_F30 · 08-06-2018, 08:27 AM

Stage 1 is for stock DP so no aggressive burbles

Quote:

Originally Posted by XxThe_RemedyXx

Stupid question but why no Stage 1 AGG MAP?

XxThe_RemedyXx · 08-06-2018, 08:51 AM

Quote:

Originally Posted by JaredG_F30

Stage 1 is for stock DP so no aggressive burbles

Yep makes sense, don't want to destroy the cat... Would turning up the aggressiveness in the Stage 1 map theoretically do the same thing or did they approach the Stage 2 burble differently?

JaredG_F30 · 08-06-2018, 08:53 AM

I'm not sure. I've never run stage 1.

Quote:

Originally Posted by XxThe_RemedyXx

Yep makes sense, don't want to destroy the cat... Would turning up the aggressiveness in the Stage 1 map theoretically do the same thing or did they approach the Stage 2 burble differently?

XxThe_RemedyXx · 08-06-2018, 08:54 AM

Quote:

Originally Posted by JaredG_F30

I'm not sure. I've never run stage 1.

MaskedBimmer · 09-20-2018, 07:09 AM

I’m thinking about getting a catted downpipe. If I go onto stage 2 non-agg 93 OTS, will the burbles on that map mess up my cells inside my catted downpipe?

Also will going onto stage 1 or stage 2 non-agg setup my burble settings for me where it doesn’t give my (stock cat/high flow cat) a huge beating or do I have to do that myself?

If I lower the slider on the burble settings will it still ruin my stock ca or high flow cat?

RESM_F30 · 05-10-2023, 03:49 PM

Bump. Did you ever get the answer to your question? Any feedback on safe parameters for catted DPs?

thejeremyman9 · 05-10-2023, 04:56 PM

Quote:

Originally Posted by RESM_F30

Bump. Did you ever get the answer to your question? Any feedback on safe parameters for catted DPs?

OEM/stock burble settings

SpoolinAddict · 05-16-2023, 11:11 PM

Quote:

Originally Posted by JaredG_F30

Stage 1 is for stock DP so no aggressive burbles

Isn't stage 1 just a charge pipe and aftermarket downpipe? and stage 2 is cp, dp, intercooler and possibly intake?

mike@x-ph.com · 05-17-2023, 08:50 AM

Quote:

Originally Posted by SpoolinAddict

Isn't stage 1 just a charge pipe and aftermarket downpipe? and stage 2 is cp, dp, intercooler and possibly intake?

Yes, for most tuning companies, the Stage 1 tune usually requires minimal hardware upgrades, with an upgraded charge pipe being the most common requirement.

This is because the stock charge pipe often can't withstand the increased boost levels that come with tuning and might fail. But it's always best to check with your specific tuner for their recommended hardware for each stage.

thejeremyman9 · 05-17-2023, 10:15 AM

Quote:

Originally Posted by SpoolinAddict

Isn't stage 1 just a charge pipe and aftermarket downpipe? and stage 2 is cp, dp, intercooler and possibly intake?

This is somewhat backwards as i indicated in your other thread. DP is not required for stage 1 on any tuning platform. Stage 1 really only "requires" CP, but realistically IC should be included as well.

Stage 2 for BM3 requires DP and IC. Stage 2 on MHD can be ran with IC+CP, stage 2+ requires DP in addition.

Intake is not required on any tune and is mostly for noise

07-25-2018, 06:43 PM	#1
Obi-Wan ER FMIC,ER CPs,Fabspeed Cat DP,Dinan CAI,BM3 S2 93 13 Rep 11 Posts Drives: 2014 335i M Sport RWD Join Date: Mar 2018 Location: MCLean, VA iTrader: (0)	Bootmod3 Burble with Catted Downpipe This might have been discussed in other threads and if it has, I apologize. I'm currently running BM3 stage 2 AGG with burble set to custom level 4 aggression. I love how it sounds but I don't want to run it if it will have a negative impact on my car. I have read in some posts about running burble with either the stock downpipe or a high flow catted downpipe (I have the Fabspeed sport cat DP) and how it shouldn't be done. I have never seen a definitive answer on the subject so I decided to ask Performance Tuning Freaks. I asked if I it's okay run the AGG map with burble with a high flow cat or should you use a catless downpipe and if the burble setting would affect fuel economy. They stated "Burble will negatively impact your fuel economy. It will be a noticable difference. We don't recommend running AGG with catted DP. You run the risk of having pieces of your cat being spat out." Again, this may be old news but I'm just passing it along. I'll be flashing my car tonight to the non-AGG stage 2 map. __________________ 2014 335i M Sport, ER FMIC, ER charge pipes, Fabspeed Sport Cat downpipe, Dinan CAI, and BM3 Stage 2 93 Oct.
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07-25-2018, 06:54 PM	#2
yoon_209 Masterchief 361 Rep 1,010 Posts Drives: 20' BMW M340i Join Date: Aug 2016 Location: Irvine, CA iTrader: (1)	burbles are nice occasionally but on level 4, that must have sounded super rice __________________ AWE Non-Res Touring \| TE37 SL PW \| Ohlins RT
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07-26-2018, 08:18 AM	#3
JaredG_F30 Lieutenant Colonel 1106 Rep 1,499 Posts Drives: 2014 335i, M-Sport, Manual Join Date: Dec 2016 Location: Raleigh, NC iTrader: (0)	Aggressive burbles on a catted DP will eventually melt your catalyst. The burbles and bangs you are hearing are little explosions in your exhaust manifold which is not good for the cat. __________________ 2014 F30 335i, M-Sport, 6MT, V804s, custom exhaust, CTS Turbo Intake & IC, FTP CP, VRSF DP, TMS Strut Brace, BM3 Stg 2, AEM WMI, H&R Sport Springs (381 whp, 429 wtq on Cali 91oct before WMI). SPI Films Blog/DIY Vids
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08-03-2018, 09:54 AM	#4
reddemon73 Major 103 Rep 1,392 Posts Drives: 2014 BMW 435 Join Date: Jan 2008 Location: Seattle iTrader: (1)	Thanks for the info. Is there a way to dialed down the AGG level on OTS stage 2 flash? __________________ 2014 435i M Sport //AW, CR//premium, tech, lightening pkgs//20% tint//full clear bra//ppk//blk grills//20" Vertini wheels//digital gauge//Apple Carplay//MPE with catted DP//VSRF charge pipe//Wagner FMIC//
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08-03-2018, 11:34 AM	#5
WajahatM Private First Class 23 Rep 112 Posts Drives: 2013 AW F30 335i xDrive Join Date: Jun 2017 Location: Chicago, IL iTrader: (0)	Theres a cog wheel in the top left corner that allows you to change the aggressiveness, duration, etc of theburble. It's found in the map you want to change.
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08-04-2018, 08:27 AM	#6
reddemon73 Major 103 Rep 1,392 Posts Drives: 2014 BMW 435 Join Date: Jan 2008 Location: Seattle iTrader: (1)	I checked with the vendor and he stated the AGG option will not ruin aftermarket catted DP. In my particular case, the FB catted DP. __________________ 2014 435i M Sport //AW, CR//premium, tech, lightening pkgs//20% tint//full clear bra//ppk//blk grills//20" Vertini wheels//digital gauge//Apple Carplay//MPE with catted DP//VSRF charge pipe//Wagner FMIC//
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08-04-2018, 06:16 PM	#7
Obi-Wan ER FMIC,ER CPs,Fabspeed Cat DP,Dinan CAI,BM3 S2 93 13 Rep 11 Posts Drives: 2014 335i M Sport RWD Join Date: Mar 2018 Location: MCLean, VA iTrader: (0)	Honestly, I have noticed that my car has burbles on the non-AGG stage 2 map when I have the car in sport and sport plus. It’s not as insane sounding but it still sounds great. I’ll try and post a video soon. __________________ 2014 335i M Sport, ER FMIC, ER charge pipes, Fabspeed Sport Cat downpipe, Dinan CAI, and BM3 Stage 2 93 Oct.
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08-04-2018, 07:10 PM	#8
XxThe_RemedyXx Colonel 967 Rep 2,653 Posts Drives: 2016 340i xDrive Join Date: Aug 2009 Location: Westchester, NY iTrader: (0)	Stupid question but why no Stage 1 AGG MAP? __________________ 2016 340i xDrive - BM3 Stage 2 93 OTS - xHP Transmission Tune Stage 2 - B58TU HPFP - Bilstein B14 - VRSF Catless DP - Kyostar CAI
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09-20-2018, 07:09 AM	#13
MaskedBimmer Registered 0 Rep 3 Posts Drives: 2013 328i xdrive n26 Join Date: Sep 2018 Location: New Jersey iTrader: (0)	Safe Burble settings with Catted Downpipe I’m thinking about getting a catted downpipe. If I go onto stage 2 non-agg 93 OTS, will the burbles on that map mess up my cells inside my catted downpipe? Also will going onto stage 1 or stage 2 non-agg setup my burble settings for me where it doesn’t give my (stock cat/high flow cat) a huge beating or do I have to do that myself? If I lower the slider on the burble settings will it still ruin my stock ca or high flow cat?
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05-10-2023, 03:49 PM	#14
RESM_F30 New Member 0 Rep 9 Posts Drives: BMW F30 Join Date: Apr 2023 Location: Jupiter, FL iTrader: (0) Garage List 2014 bmw [0.00]	Bump. Did you ever get the answer to your question? Any feedback on safe parameters for catted DPs?
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