My X3 M40i flashed by Mission Performance

TreDirtyFive · 08-27-2018, 12:46 AM

Quote:

Originally Posted by GT500R

Correct, I buy the stage 1 tune and then want to log to see boost or afr’s and timing based on my octanes, that’s what I want to do.

Yes...if you are local, Alex actually reads your DME data and builds your tune off of that and then does a few logs from street pulls to make sure it runs well. Also, you can do this entirely remotely and I believe you can log your car with a JB4 pass through and send him that info for finer tuning as well. Obviously, this is all predicated on how much time he has and I know he is slammed and backed up with flashes currently. So, yes, he can build a custom tune for you, if that's what you prefer. The stage 1 tune is very linear and smooth and, for 95% of people, the initial build is perfect but there are some, like me, who are on heavier 4WD vehicles who may way want something a little less linear and punchier down low for everyday driving since I'm not racing this brute...I am working with him on this currently.

DigiSage · 08-27-2018, 01:34 PM

Quote:

Originally Posted by TreDirtyFive

Yes...if you are local, Alex actually reads your DME data and builds your tune off of that and then does a few logs from street pulls to make sure it runs good. Also, you can do this entirely remotely and I believe you can use the mflasher to log your car and send him that info for iner tuning as well. And, yes, he can build a custom tune for you, if that's what you prefer. The stage 1 tune is very linear and smooth and, for 95% of people, the initial build is perfect but there are some, like me, who are on heavier 4WD vehicles who may way want something a little less linear and punchier down low for everyday driving since I'm not racing this brute...I am working with him on this currently.

Can you expand on this? I also have a M40i and got their tune, and I quite like it so far, but if there’s more power to be had, I am curious

TreDirtyFive · 08-29-2018, 03:21 AM

Quote:

Originally Posted by DigiSage

Can you expand on this? I also have a M40i and got their tune, and I quite like it so far, but if there’s more power to be had, I am curious

Quote:

Originally Posted by DigiSage

Can you expand on this? I also have a M40i and got their tune, and I quite like it so far, but if there’s more power to be had, I am curious

If you are on Stage 1 then there is no more power to be had...I am only trying to tweak the power "delivery" on my car. I prefer the stock torque punch (overboost) on kick down that has been lost due to the new linearity of the power curve. Don't get me wrong...the tune is definitely more powerful but I'm assuming the curve may be more aggressive stock lower in the rev range to accommodate the heavy car and 4WD. I have no real data to back this up but it is what I am experiencing.

GT500R · 09-19-2018, 05:56 PM

Anyone have any 1/4 mile times for the Mission Performance tune?

dereksM3 · 09-19-2018, 06:39 PM

Quote:

Originally Posted by GT500R

Anyone have any 1/4 mile times for the Mission Performance tune?

11.52 at 120mph

J/K...this is only wishful thinking but I suspect low to mid 12's even would be damn impressive, I mean that's near X5M territory.

j1980mac · 09-24-2018, 09:43 AM

Any update on the Stage 1 & 2 Mission tunes? Still like them? Still smooth?

j1980mac · 09-24-2018, 09:44 AM

Quote:

Originally Posted by dereksM3

Quote:

Originally Posted by GT500R

Anyone have any 1/4 mile times for the Mission Performance tune?

11.52 at 120mph

J/K...this is only wishful thinking but I suspect low to mid 12's even would be damn impressive, I mean that's near X5M territory.

When I read this my eyes temporarily bugged out of my head!

maximumeffort · 03-17-2019, 10:24 PM

Updates, ET's?

GT500R · 03-18-2019, 06:31 AM

Quote:

Originally Posted by maximumeffort

Updates, ET's?

2 weeks, new ET’s on the way.

I’m shooting for 12.0x

maximumeffort · 03-21-2019, 06:08 PM

Quote:

Originally Posted by GT500R

2 weeks, new ET’s on the way.

I’m shooting for 12.0x

Cool, good luck.

dereksM3 · 03-22-2019, 10:50 AM

Quote:

Originally Posted by GT500R

2 weeks, new ET’s on the way.

I’m shooting for 12.0x

11's or Bust!

j1980mac · 03-22-2019, 11:12 AM

I'm probably in the 11s now because of the ECU/TCU tune and DP.

808ron · 03-24-2019, 03:51 AM

Quote:

Originally Posted by j1980mac

I'm probably in the 11s now because of the ECU/TCU tune and DP.

How’s the exhaust smell after you catted the DP? I haven’t had a cat removed in eons.

j1980mac · 03-24-2019, 08:33 AM

Quote:

Originally Posted by 808ron

Quote:

Originally Posted by j1980mac

I'm probably in the 11s now because of the ECU/TCU tune and DP.

How’s the exhaust smell after you catted the DP? I haven’t had a cat removed in eons.

It's tolerable. It's not like a 69 Nova with strait pipes.

BMWZ4 · 04-30-2019, 07:23 PM

Considering this tune. Any long term updates for the x3 m40i stage 1? Has anyone run into any snags with dealers flagging the vehicle having been flashed?

GT500R · 04-30-2019, 08:35 PM

Quote:

Originally Posted by BMWZ4

Considering this tune. Any long term updates for the x3 m40i stage 1? Has anyone run into any snags with dealers flagging the vehicle having been flashed?

I’m Stage 2.5 / Stage 1 and have had 0 problems. Performed air filter (stock) change and spark plug change at 20k.

I have been running the tune for 16,xxx miles now.

BMWZ4 · 04-30-2019, 09:23 PM

Quote:

Originally Posted by GT500R

Quote:

Originally Posted by BMWZ4

Considering this tune. Any long term updates for the x3 m40i stage 1? Has anyone run into any snags with dealers flagging the vehicle having been flashed?

I’m Stage 2.5 / Stage 1 and have had 0 problems. Performed air filter (stock) change and spark plug change at 20k.

I have been running the tune for 16,xxx miles now.

Thanks. No snags at the dealer yet? Or are they tune friendly?

BMWZ4 · 05-01-2019, 03:22 PM

Are there any other long term Mission ECU tunes out there with any feedback?

09-19-2018, 05:56 PM	#26
GT500R Major 800 Rep 1,219 Posts Drives: BMW X3M Join Date: May 2018 Location: NE iTrader: (0)	Anyone have any 1/4 mile times for the Mission Performance tune? __________________ X3M Alpine White - SOLD Fastest Tune Only Record - Mission Performance 10.84@127.43 / +1912 DA NH Dragway \| 10.6@130 Dragy / +820 DA The Streets \| NOW: Tesla Model Y Performance
	Appreciate 0 Quote

09-24-2018, 09:43 AM	#28
j1980mac Captain 263 Rep 964 Posts Drives: 2018 X3 M40i Join Date: Apr 2018 Location: Austin TX iTrader: (0)	Any update on the Stage 1 & 2 Mission tunes? Still like them? Still smooth?
	Appreciate 0 Quote

03-17-2019, 10:24 PM	#30
maximumeffort Private 19 Rep 57 Posts Drives: 2019 BMW x3 M40i Join Date: Mar 2019 Location: NJ USA iTrader: (0)	Updates, ET's?
	Appreciate 0 Quote

03-22-2019, 11:12 AM	#34
j1980mac Captain 263 Rep 964 Posts Drives: 2018 X3 M40i Join Date: Apr 2018 Location: Austin TX iTrader: (0)	I'm probably in the 11s now because of the ECU/TCU tune and DP.
	Appreciate 0 Quote

04-30-2019, 07:23 PM	#37
BMWZ4 Major General 1910 Rep 5,103 Posts Drives: '23 X1/'23 Allroad Progressiv Join Date: Apr 2010 Location: Toronto iTrader: (1)	Considering this tune. Any long term updates for the x3 m40i stage 1? Has anyone run into any snags with dealers flagging the vehicle having been flashed? __________________ '11 Z4 30i (retired);'11 X3 28i (retired); '15 M235i Stage 1 Dinan (recalled & crushed); '16 M235i Stage 3 Dinan (retired); '15 X3 28i (retired); '14 328i (retired), 2019 X3M40i (retired); Loaded '18 X1 (retired); Loaded '20 X3MC DG, Black/Tan Merino (retired); Loaded '23 X1 Cape York green and Red/Black interior; '23 Audi A4 Allroad Progressiv
	Appreciate 0 Quote

05-01-2019, 03:22 PM	#40
BMWZ4 Major General 1910 Rep 5,103 Posts Drives: '23 X1/'23 Allroad Progressiv Join Date: Apr 2010 Location: Toronto iTrader: (1)	Are there any other long term Mission ECU tunes out there with any feedback? __________________ '11 Z4 30i (retired);'11 X3 28i (retired); '15 M235i Stage 1 Dinan (recalled & crushed); '16 M235i Stage 3 Dinan (retired); '15 X3 28i (retired); '14 328i (retired), 2019 X3M40i (retired); Loaded '18 X1 (retired); Loaded '20 X3MC DG, Black/Tan Merino (retired); Loaded '23 X1 Cape York green and Red/Black interior; '23 Audi A4 Allroad Progressiv
	Appreciate 0 Quote