N54 running slower after MHD burble tune

mintE92 · 05-17-2024, 05:14 PM

yesterday I hooked up my MHD adapter and flashed state 0 just to get the burble tune for now. I am going to next uprgade charge pipe, FMIC and catless downpipes but for now i just wanted the burble. when that stuff is on the car i will run stage 2+ on 93 octane. the car has been running much slower, the throttle and clutch feel different. It had one previous owner who didnt touch anything with the car so i am wondering what went wrong and what i should do now. i could get rid of the tune but i dont know if i need to or not. i know the burbles are destroying my catalytic converters but i dont really care now. any advice?

jwalker87 · 05-18-2024, 04:46 AM

That tune is garbage - get rid of it. If you still have issues after reflashing to stock, you either have an underlying issue that was "exposed" by the tune, or the tune broke something, though you may never know which.

ratbstrd · 05-18-2024, 07:13 PM

I wonder if you will learn from your mistakes - destroying the cat and destroying the car . . .

Grecobeemer · 05-20-2024, 04:40 PM

Interesting, was looking to get MHD tune. Seems to be widely positive reviews though.

jwalker87 · 05-21-2024, 04:55 AM

Quote:

Originally Posted by Grecobeemer

Interesting, was looking to get MHD tune. Seems to be widely positive reviews though.

To be clear, the MHD tune, and tuning tool, is great. The "burble tune," which is not made/advertised/supported by MHD, is garbage, and destroys various parts of you engine, as well as makes it run terribly, in an attempt to make it sound like it has a big lopey cam.

Grecobeemer · 05-21-2024, 02:03 PM

Quote:

Originally Posted by jwalker87

To be clear, the MHD tune, and tuning tool, is great. The "burble tune," which is not made/advertised/supported by MHD, is garbage, and destroys various parts of you engine, as well as makes it run terribly, in an attempt to make it sound like it has a big lopey cam.

Gotcha! Thanks. Yeah I am not a fan of burble, pops etc tunes. In my opinion they make a car sound tacky and "racer boy". Appreciate the clarification.

mintE92 · 05-30-2024, 03:21 PM

Quote:

Originally Posted by ratbstrd

I wonder if you will learn from your mistakes - destroying the cat and destroying the car . . .

little harsh but i understand😂. took it off after 2 days. stage one mhd now and its all good. fuel economy has been bad since installing Charge pipe and BOV. avg 13.5 overall when city driving calmly.

lowrydr310 · 05-31-2024, 01:25 AM

MHD Stage 0 with burbles enabled isn't a 'garbage tune' and won't destroy cats... I mean shouldn't destroy cats. Just don't set it to aggressive with a long duration.

The mild settings give a nice little pop on deceleration which can easily be adjusted. I played with it for a while and settled on only enabling it in DS mode (auto transmission), soft setting, 0.7s duration. It was fun for a few months but I got tired of it and disabled it.

05-17-2024, 05:14 PM	#1
mintE92 New Member 14 Rep 5 Posts Drives: 2007 E92 BMW 335i 6 speed Join Date: May 2024 Location: Virginia iTrader: (0) Garage List 2007 BMW 335i [10.00] 2007 BMW 335i [10.00]	N54 running slower after MHD burble tune yesterday I hooked up my MHD adapter and flashed state 0 just to get the burble tune for now. I am going to next uprgade charge pipe, FMIC and catless downpipes but for now i just wanted the burble. when that stuff is on the car i will run stage 2+ on 93 octane. the car has been running much slower, the throttle and clutch feel different. It had one previous owner who didnt touch anything with the car so i am wondering what went wrong and what i should do now. i could get rid of the tune but i dont know if i need to or not. i know the burbles are destroying my catalytic converters but i dont really care now. any advice?
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05-18-2024, 04:46 AM	#2
jwalker87 Major 331 Rep 1,029 Posts Drives: '08 335i, '11 335xi, '01 Z3M Join Date: Jul 2010 Location: Pittsburgh, PA iTrader: (2)	That tune is garbage - get rid of it. If you still have issues after reflashing to stock, you either have an underlying issue that was "exposed" by the tune, or the tune broke something, though you may never know which. __________________ 2001 e36/7 M Roadster 5spd 2008 e90 335i 6spd 2011 e90 335xi 6spd 2011 e70 x5 diesel 2010 Ducati Monster 696
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05-18-2024, 07:13 PM	#3
ratbstrd New Member 4 Rep 6 Posts Drives: BMW e91/e46 t/e24/e28/K1200rs Join Date: Oct 2022 Location: Briarcliff Manor, NY iTrader: (0)	I wonder if you will learn from your mistakes - destroying the cat and destroying the car . . .
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05-20-2024, 04:40 PM	#4
Grecobeemer Enlisted Member 15 Rep 37 Posts Drives: BMW E46, E39 and now an E90 Join Date: Apr 2024 Location: NC iTrader: (0)	Interesting, was looking to get MHD tune. Seems to be widely positive reviews though.
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05-31-2024, 01:25 AM	#8
lowrydr310 Robot 1834 Rep 2,296 Posts Drives: 2006 330i, 2007 E93 335i Join Date: Apr 2013 Location: Souhtrne Califniora iTrader: (0)	MHD Stage 0 with burbles enabled isn't a 'garbage tune' and won't destroy cats... I mean shouldn't destroy cats. Just don't set it to aggressive with a long duration. The mild settings give a nice little pop on deceleration which can easily be adjusted. I played with it for a while and settled on only enabling it in DS mode (auto transmission), soft setting, 0.7s duration. It was fun for a few months but I got tired of it and disabled it.
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