[S55bruh]

Would it be possible to simply copy files from the CS to use in the 2C? I know nothing about tuning and I love my stock car as is, but if the only difference in power production between the M2CS and 2C is software controlled, then how hard would it be to have this specific tune flashed over like any other tune?

[Megator]

Pretty much impossible since BMW is the only one with a non-compiled tune. (this is how I understand that it is not possible to simply copy an OEM tune).

However, BM3 and other tuners make tunes that approximate the M4 CS/competition tune ETC.

As the M2 CS is not even out yet no one makes "replica" tune. In the meantime you can get an M3/4 "CS" tune which is likely 99% the same as the M2 CS one.

[ONLYA6]

Just Get the new Dinan S55 tune. It's covered under factory warranty.

[Conissah]

Originally Posted by S55bruh

Would it be possible to simply copy files from the CS to use in the 2C? I know nothing about tuning and I love my stock car as is, but if the only difference in power production between the M2CS and 2C is software controlled, then how hard would it be to have this specific tune flashed over like any other tune?

As of right now, since the new ECU's are locked, and the CS has not actually hit the floors yet, no. Depending on what year your Comp is, you can flash the M3 or M4 tunes (C, CS, and I even think GTS tunes), via BM3. There are other tuning options, I'm just referencing the one that I know of that has other 'stock' tunes to chose from. My 2020 M2C's ECU is locked, and with the CS's coming out, the ECU will eventually be unlocked without bench flashing. When that happens, I will likely be flashing the M3/M4 CS tune to my car.

[Mr Pete]

Originally Posted by ONLYA6

Just Get the new Dinan S55 tune. It's covered under factory warranty.

I don't think a Dinan tune is covered under the BMW factory warranty. Dinan's warranty will cover it.

[Dav3]

Originally Posted by S55bruh

Would it be possible to simply copy files from the CS to use in the 2C? I know nothing about tuning and I love my stock car as is, but if the only difference in power production between the M2CS and 2C is software controlled, then how hard would it be to have this specific tune flashed over like any other tune?

M2CS is not out

As soon as a tuner gets their hand on its OEM software, I'd imagine they will clone it and offer it on the market

Could take some time though, considered the limited number of production

[CosmosMpower]

Isn't the M2CS tune going to be the same as the M3/M4 CS tune?

[Conissah]

Originally Posted by CosmosMpower

Isn't the M2CS tune going to be the same as the M3/M4 CS tune?

I would be genuinely surprised if it isn't.

[dmboone25]

Originally Posted by Conissah

As of right now, since the new ECU's are locked, and the CS has not actually hit the floors yet, no. Depending on what year your Comp is, you can flash the M3 or M4 tunes (C, CS, and I even think GTS tunes), via BM3. There are other tuning options, I'm just referencing the one that I know of that has other 'stock' tunes to chose from. My 2020 M2C's ECU is locked, and with the CS's coming out, the ECU will eventually be unlocked without bench flashing. When that happens, I will likely be flashing the M3/M4 CS tune to my car.

I have been seeing posts about the "locked" vs. "unlocked" ECUs, which I don't have any context around. What does that mean, exactly? I was under the assumption that this ship had sailed for the S55.

[Conissah]

Originally Posted by dmboone25

I have been seeing posts about the "locked" vs. "unlocked" ECUs, which I don't have any context around. What does that mean, exactly? I was under the assumption that this ship had sailed for the S55.

The DME is what controls the engine, literally Digital Motor Electronics. For 2020, BMW changed the DME if your iStep version is past a certain number. All previous versions have been 'cracked', so they're all tune-able. AFAIK, BM3 (and most other shops) haven't cracked the new DME yet, so we can't tune our cars. Only method, as of right now, is bench flashing the ECU to backdate the DME, and then you will be able to freely tune your car.

[Dav3]

Originally Posted by CosmosMpower

Isn't the M2CS tune going to be the same as the M3/M4 CS tune?

Doubt it

M division extensively tested the M2 CS at various tracks

Surely they must have re-calibrated the car taking in consideration its shorter wheel base

[CosmosMpower]

Originally Posted by Dav3

Doubt it

M division extensively tested the M2 CS at various tracks

Surely they must have re-calibrated the car taking in consideration its shorter wheel base

LOL they also said the M2C has a lithium ion battery in all the marketing materials...

[ONLYA6]

Originally Posted by Mr Pete

I don't think a Dinan tune is covered under the BMW factory warranty. Dinan's warranty will cover it.

It's covered under the factory warranty when installed at a Dinan authorized BMW dealer.

[Mr Pete]

Originally Posted by ONLYA6

It's covered under the factory warranty when installed at a Dinan authorized BMW dealer.

I'd love to see the fine print on this. I'm still going to say false

[Thescout13]

Originally Posted by ONLYA6

It's covered under the factory warranty when installed at a Dinan authorized BMW dealer.

Nope not true. It's covered under Dinan's replacement warranty they just work directly with their Authorized dealer to resolve (direct billing). If you were to take your broken car to a non-Dinan Authorized BMW dealership, BMW will void your warranty, flag your car, and you will have to liaison between Dinan and your dealer to get Dinan to pay the repairs.

Just read the Dinan warranty on their website, or read the many threads on various forums about how a Dinan warranty repair works.

Or just go over to the Dinan Flash thread under the engine section and read it from the horse's mouth.

[ChrisK]

Originally Posted by dmboone25

I have been seeing posts about the "locked" vs. "unlocked" ECUs, which I don't have any context around. What does that mean, exactly? I was under the assumption that this ship had sailed for the S55.

Depending on your mfg date BMW put in new software that prevents the ECU software from being easily modified. Aka unlocked vs. locked (locked out lmao)

Dinan and other tuners can upload older software into the ECU so it can once again can be modified. Basically installing the version of ECU software BMW had before they locked it down.

Luckily my car has not been updated and is unlocked.

[MR.]

Let's wait and see... My intention is to load all software from the M2CS into the M2C.

MR

[ONLYA6]

Originally Posted by Thescout13

Nope not true. It's covered under Dinan's replacement warranty they just work directly with their Authorized dealer to resolve (direct billing). If you were to take your broken car to a non-Dinan Authorized BMW dealership, BMW will void your warranty, flag your car, and you will have to liaison between Dinan and your dealer to get Dinan to pay the repairs.

Just read the Dinan warranty on their website, or read the many threads on various forums about how a Dinan warranty repair works.

Or just go over to the Dinan Flash thread under the engine section and read it from the horse's mouth.

Alright I was wrong.

Repairs still not coming out of owner's pocket for the same period if something should happen. Close to the same as you can get. 🙂

[AlpsRider]

I believe that the M2CS original tune will be similar to the M4CS. However the M4 CS has 285/30 ZR 20 rear tires. I would think that with the M2 CS tune they would have taken that into consideration otherwise the rear tires would spin like a top in lower gears. BM3 allows you to lower the power by gear in order to prevent too much wheel spin.

[Big Fabri]

Originally Posted by AlpsRider

I believe that the M2CS original tune will be similar to the M4CS. However the M4 CS has 285/30 ZR 20 rear tires. I would think that with the M2 CS tune they would have taken that into consideration otherwise the rear tires would spin like a top in lower gears. BM3 allows you to lower the power by gear in order to prevent too much wheel spin.

it's not guaranteed that you can achive the boost in lower gear. the boost is generated by load.it could be that you get less boost even though you set it high and so less power. adding boost limiter by gear isn't something hard for bmw

[AlpsRider]

Trust me, the M4 CS tune on the M2C in MDM mode will spin the tires off :-). That's why I don't think that the M2 CS tune will be exactly like the M4 CS tune. Also they would have taken into consideration manual the transmission that the M4 CS doesn't have.

[Fenerbahce]

M4CS is rated 453 hp / 443lb-ft. M2CS is rated 444 hp / 406 lb-ft. So it's all but certain the tunes are different.

In terms of putting power down, given the M2CS torque is the same as the M2C, there should be no difference in it's ability to put the power down relative to the M2C. The M2CS will simply hold power a little further up into the rev band. Maximum in-gear acceleration should be no different, but the M2CS will maintain that acceleration for longer and higher into the rev band.

Also, it's important to remember that 265 width tires on an M2 are not going to put the power down the same as 265 width tires on an M3/M4. The M2's shorter wheel base likely helps with weight transfer and loading of the rear tires under acceleration. It may be a negligible difference, but I wouldn't assume the M2 is necessarily the same as an M4 in this regard.

To summarize, the M4CS having 285 width tires is somewhat irrelevant since the M2CS has a shorter wheelbase and less torque. Also, the M2CS tune should be just fine on the M2C - no need for torque limitation in lower gears as the torque is no different.