Reverting Tune Back to Stock

dsenechal · 11-21-2017, 10:57 AM

I recently purchased a new to me e92 M3... it has an exhasut and aftermarket tune on it.. I am planning to swap back to an OEM exhaust, but not sure what to do about the tune. How would I go about reverting to stock? Thanks!

Ab28 · 11-21-2017, 12:16 PM

Are you unhappy with the tune?

If not, just leave it.

I went back to a stock rear section (still have a primary cat delete) and didn't touch the tune.

dsenechal · 11-21-2017, 12:56 PM

No issues with the tune...drive ability is good - but I would have to guess that fuel maps are optimized for a higher flow exhaust. Restricting flow back to a stock exhaust would make it run a little richer, if I had to guess.

MMMM3 · 11-21-2017, 07:46 PM

if he gets rid of the aftermarket exhaust and if that exhaust is catless and if the tune is a stage 2 tune, then it has to put back to stage 1 or OEM. Can't run stage two with cats

McSwine · 11-21-2017, 11:09 PM

Any way to find out who did the tune and work with them to optimize it for your particular needs?

dsenechal · 11-22-2017, 12:27 PM

Quote:

Originally Posted by McSwine

Any way to find out who did the tune and work with them to optimize it for your particular needs?

Since I am going back to stock, no need to really optimize anything. Just want to revert everything back to stock. I think it might be a Dinan tune, but I am not 100% sure

KawBoy · 11-23-2017, 09:13 AM

Easiest way will be taking the car to the dealer and ask them to flash the DME. And update all other modules, if needed, since you are there.

Bruuuce · 11-23-2017, 10:49 AM

like above, take it to the dealer. Probably do not even need to ask them, they will just do it.

11-21-2017, 10:57 AM	#1
dsenechal Private First Class 148 Rep 153 Posts Drives: Car Join Date: Sep 2017 Location: Houston iTrader: (1)	Reverting Tune Back to Stock I recently purchased a new to me e92 M3... it has an exhasut and aftermarket tune on it.. I am planning to swap back to an OEM exhaust, but not sure what to do about the tune. How would I go about reverting to stock? Thanks! __________________ 2006 e46 M3 l 2012 Lamborghini LP570-4 Super Trofeo Stradale l 2007 Murcielago LP640 IG: instagram.com/biggreasytaco
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11-21-2017, 12:16 PM	#2
Ab28 Captain 593 Rep 726 Posts Drives: E90 M3/E39 M5/128i Join Date: Jan 2017 Location: . iTrader: (3)	Are you unhappy with the tune? If not, just leave it. I went back to a stock rear section (still have a primary cat delete) and didn't touch the tune.
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11-21-2017, 12:56 PM	#3
dsenechal Private First Class 148 Rep 153 Posts Drives: Car Join Date: Sep 2017 Location: Houston iTrader: (1)	No issues with the tune...drive ability is good - but I would have to guess that fuel maps are optimized for a higher flow exhaust. Restricting flow back to a stock exhaust would make it run a little richer, if I had to guess. __________________ 2006 e46 M3 l 2012 Lamborghini LP570-4 Super Trofeo Stradale l 2007 Murcielago LP640 IG: instagram.com/biggreasytaco
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11-21-2017, 07:46 PM	#4
MMMM3 Second Lieutenant 75 Rep 243 Posts Drives: 2018 f80 6mt Join Date: Oct 2017 Location: Ann Arbor iTrader: (1)	if he gets rid of the aftermarket exhaust and if that exhaust is catless and if the tune is a stage 2 tune, then it has to put back to stage 1 or OEM. Can't run stage two with cats
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11-21-2017, 11:09 PM	#5
McSwine Private First Class 117 Rep 165 Posts Drives: 2011 E92 M3 Join Date: Dec 2016 Location: Levy, AR iTrader: (0)	Any way to find out who did the tune and work with them to optimize it for your particular needs?
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11-23-2017, 09:13 AM	#7
KawBoy Lieutenant 155 Rep 561 Posts Drives: 2012 E92 M3 Join Date: May 2012 Location: SE FL iTrader: (2)	Easiest way will be taking the car to the dealer and ask them to flash the DME. And update all other modules, if needed, since you are there.
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11-23-2017, 10:49 AM	#8
Bruuuce the me 342 Rep 319 Posts Drives: 01ZCoupe, 08M3Coupe, 21M2C Join Date: Oct 2014 Location: Atlanta iTrader: (0)	like above, take it to the dealer. Probably do not even need to ask them, they will just do it. __________________ 01 Z Coupe, 5MT, SB, not much else 08 M3 Coupe, 6MT, JB, not much else 21 M2c Coupe ,DCT, SOM, not much else
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