BM3 GTS tune

[Stansharp]

I recently had the BM3 Stage 1 tune installed on my M4 and have been hearing that I may want to look at the GTS DCT Tune as well.
Would appreciate any comments or advice on whether this is worth looking in to.
I'm also wondering if it is included in the original BM3 software that I purchased?
I had the Stage 1 installed by someone on the site but I do have all the cables and required hardware to do any of the work myself. (except the knowledge)
Is it fairly simple to do this install?

Thanks in advance,
Stan
__________________
2017 M4 Competition F83 MW/SO

[Bettertomorrow]

Since none answered, I don't have BM3 but I have MHD (which comes with GTS DCT just like BM3). If BM3 is similar to MHD, flashing process should be straightforward, just choose the option to flash GTS DCT rather than Stage 1 Engine tune. For reference, MHD's long flash took about 3-4 minutes (initial write) for engine. And during GTS flash, it actually crapped out, put me in panic mode. Did the flash again and it went fine, but it took longer than engine flash (probably 4-5 min). I am under the impression that BM3 takes longer to flash so that may be something to keep in mind. Good luck! Difference with GTS flash was immediate in my experience.

[Stansharp]

Originally Posted by Bettertomorrow

Since none answered, I don't have BM3 but I have MHD (which comes with GTS DCT just like BM3). If BM3 is similar to MHD, flashing process should be straightforward, just choose the option to flash GTS DCT rather than Stage 1 Engine tune. For reference, MHD's long flash took about 3-4 minutes (initial write) for engine. And during GTS flash, it actually crapped out, put me in panic mode. Did the flash again and it went fine, but it took longer than engine flash (probably 4-5 min). I am under the impression that BM3 takes longer to flash so that may be something to keep in mind. Good luck! Difference with GTS flash was immediate in my experience.

Thanks for the info Bettertomorrow.

I was sure I would get a lot of response and information regarding that question and was quite surprised with the lack of answers.
I will definitely do as you said and flash for the GTS DCT changes to see how it feels.

Stan

[FrznM]

Do you know your login info for BM3?

[Stansharp]

Originally Posted by aamirani

Do you know your login info for BM3?

Of course!
Why?

[EDWYER]

Originally Posted by aamirani

Do you know your login info for BM3?

Of course he does but you can't have it.

[Stansharp]

Originally Posted by aamirani

Do you know your login info for BM3?

Why are you asking aamirani?

[Stansharp]

Originally Posted by EDWYER

Of course he does but you can't have it.

Thanks EDWYER, you took the words out of my mouth... lol

[FrznM]

Need to have the login to flash yourself. Post made it seem like someone did it for him since he’s asking if it’s easy or not. so the first step here would be to use your login info to get into the BM3 software. Sounds like you can figure it out!

[FrznM]

Originally Posted by EDWYER

Of course he does but you can't have it.

[htotheinzel]

i flashed mine, process was super straight forward. if you can handle flashing a tune, you can do this

i did it almost immediately after getting the car, so i dont have a ton of reference as far as the improvements it brings

[N44RP]

I can’t say which I prefer
They’re both different

Stock will hit you in the back everytime you shift and somewhat disrupt the chassis

GTS will remove the jolt when you shift and things become far smoother.

I thought stock was fun but I’m okay with the GTS tune for now

[Stansharp]

Originally Posted by N44RP

I can’t say which I prefer
They’re both different

Stock will hit you in the back everytime you shift and somewhat disrupt the chassis

GTS will remove the jolt when you shift and things become far smoother.

I thought stock was fun but I’m okay with the GTS tune for now

Hey N44RP
I kinda like that hit in the back when I shift lol
Maybe I'll just leave it be

[Stansharp]

Originally Posted by htotheinzel

i flashed mine, process was super straight forward. if you can handle flashing a tune, you can do this

i did it almost immediately after getting the car, so i dont have a ton of reference as far as the improvements it brings

I've been told that the xhp tune is better than the one BM3 comes with
But haven't got enough info yet to know if that's true.
I'd be paying again for an xhp tune and the BM3 is free so there's that...

[N44RP]

Originally Posted by Stansharp

Hey N44RP
I kinda like that hit in the back when I shift lol
Maybe I'll just leave it be

It’s funny you say that, I was hesitant about flashing the tune because I preferred that driveline shock lol I just wanted to know what the GTS fuss was about

I may go back to it in a few months

[TopJimmy]

Originally Posted by Stansharp

I've been told that the xhp tune is better than the one BM3 comes with
But haven't got enough info yet to know if that's true.
I'd be paying again for an xhp tune and the BM3 is free so there's that...

XHP has a little more clamping force than the BM3 GTS trans flash, and XHP is pretty customizable, but not for the >$500 cost. It's only needed if your slipping clutches and need additional clamping force.

[Ropes]

I had the MHD GTS DCT flash for a couple of years and loved it over the initial 2017 stock flash. I went in for a software flash for my idrive and the dealer flashed my entire car to the 2021 software which made a huge difference. The DCT behaved so close to the GTS flash that I didn't notice it was different until I was on the freeway. In D3 the shift point from 7 to 6 was off and a few other differences. If stock was like that I would never have bothered. I tried out the XHP and like the stage 2 with some tweaking to the shift points. It is now like GTS+ which I adore.

[Bettertomorrow]

Originally Posted by Ropes

I had the MHD GTS DCT flash for a couple of years and loved it over the initial 2017 stock flash. I went in for a software flash for my idrive and the dealer flashed my entire car to the 2021 software which made a huge difference. The DCT behaved so close to the GTS flash that I didn't notice it was different until I was on the freeway. In D3 the shift point from 7 to 6 was off and a few other differences. If stock was like that I would never have bothered. I tried out the XHP and like the stage 2 with some tweaking to the shift points. It is now like GTS+ which I adore.

I had MHD GTS for a few months then I got the latest version of GTS DCT from bimmer-remote. Both MHD and latest GTS seemed to shift quicker than stock with less slipping when taking off from the stop (latest GTS being a bit smoother). Last a couple of weeks, I've been using S3 exclusively (mainly to prevent kickdown but its been much more enjoyable to drive). Whenever I shift in S3, no pronounced jolt, but just quick shift, as expected.

Odd thing though, I just reflashed my engine from Stage 1 MHD to Multimap Stage 1 MHD yesterday, and I get the jolt whenever I shift now, similar to stock DCT jolt. More pronounced clamping from the stop is still there but it has jolt each time I shift now. Engine flash wouldn't have touched DCT...Strange...but I will take it!

[gcant35]

If you're referring to the GTS transmission flash in Bootmod3, do it.

The shifting is night-and-day difference vs stock.

[Stansharp]

I am going to give the BM3 GTS tune a try and see how it feels.
I don't drive the car that hard and only occasionally do hard pulls so I think
I'll save the $ and see how it feels.

Thanks guys for all the info.
I'll post how it works out.

[G-Ram]

Isn't the GTS trans flash part of the BM3 stage 1 offering?
IE : if you flashed BM3 software, you're running the GTS trans tune as well as the engine upgrade?

[Stansharp]

Originally Posted by G-Ram

Isn't the GTS trans flash part of the BM3 stage 1 offering?
IE : if you flashed BM3 software, you're running the GTS trans tune as well as the engine upgrade?

G Ram
I am running the BM3 Stage 1 but will have to ask the installer that I had to it whether or not the GTS trans was an add on or if it's actually been flashed.
I didn't notice much difference in the shifts but the power was substantial.