[JimMag]

Does anyone know when we will be able to tune the 2021 m550ix ? I got this car expecting to do a catless down pipe and a tune. Had I know the tune wouldnt be available I would have ponyed up the money for a real M .
Im thinking about putting my car on swapalease and putting in an order for a 2022 M.
Any info out there about a tune?
Thanks, jim maguire

[TR930]

Originally Posted by JimMag

Does anyone know when we will be able to tune the 2021 m550ix ? I got this car expecting to do a catless down pipe and a tune. Had I know the tune wouldnt be available I would have ponyed up the money for a real M .
Im thinking about putting my car on swapalease and putting in an order for a 2022 M.
Any info out there about a tune?
Thanks, jim maguire

Racechip prob only option right now.

[PsiAddict]

Does Racechip make a decent difference and how hard is the install? I would just love to get rid of the first gear torque limiter.

[choppedliver]

Seems like racechip works.

https://f90.bimmerpost.com/forums/sh....php?t=1819633

[PaLaKaT]

Originally Posted by PsiAddict

Does Racechip make a decent difference and how hard is the install? I would just love to get rid of the first gear torque limiter.

None of the Piggyback devices will help with the 1st gear torque limiter until an actual tune comes out. Good news is APR were able to unlock 2021 Audis ECU. Manhart mentioned that its similar lock to BMW, Also company called HPC in Russia were able to tune 2021 M5 and when i spoke with them they told me they don't do unlocks over the air unless i bring the vehicle physically to them. so i think its only matter of time until it gets unlocked soon in the U.S.

Now as for piggy back devices, your options are JB4 and racechip. I personally think JB4 is far more superior, do your own research on the differences. Below is my personal record on JB4 for 100-200kmh run on dragy.

[DrewBeez76]

Check out CarBahn, Steve Dinan’s new shop. He sold Dinan 5-6 years back to a private equity shop. From what I read online, he started CarBahn after his non compete was up. I got the tune on my 2020 M550i (purchased car in 5/20, got tune installed 8/20). It completely transformed the car. An absolute rocket!! I took an M5 Competition (from 30-130 by several car lengths) and have overtaken many others. Have yet to lose ;~) Have dragy recorded 0-60 of 3.15 seconds (with a good bit of wheel spin). Just got the dragy a few days ago so I need to play with a a little more. First and only 1/4 run was an 11.05 @ 129.58MPH. And there was plenty of meet still on the bone… I could not get launch control to work properly on this launch, my 0-60 was 3.4 seconds. So I have to imagine if I could get the 3.15, or better with a proper lunch with minimal wheel spin, I would be in the high 10’s 👍. Happy to share any information if you have questions, I have dragy screen shots to support claims.

[DrewBeez76]

One more thing... ask for Chris MacNaughton, he’s who I dealt with. When I purchased my tune last year, they did not have it listed on their website yet for the 2020. While your 2021 is the LCI, the engine is the same as the 2020. Also worth mentioning, the tune has a warranty that mirrors the BMW factory warranty.

[PaLaKaT]

Originally Posted by DrewBeez76

One more thing... ask for Chris MacNaughton, he's who I dealt with. When I purchased my tune last year, they did not have it listed on their website yet for the 2020. While your 2021 is the LCI, the engine is the same as the 2020. Also worth mentioning, the tune has a warranty that mirrors the BMW factory warranty.

I guess you are not aware that 2020 and 2021 have different ECU/DMEs even though it is the same engine. This is why i mentioned in the post above that it has not been unlocked yet.

Now as for your "overtaking M5 by several cars" i find that hard to believe unless M5 driver was sleeping. Fastest M550 (2020-2021) for 100-200kmh on dragy is 6.59s which is still in M5 stock territory, not to mention it was by set by someone using BM3 tune. Post your 100-200kmh run or 60-130Mph, lets see those magical numbers you're talking about.

[DrewBeez76]

Originally Posted by DB_BMW

I guess you are not aware that 2020 and 2021 have different ECU/DMEs even though it is the same engine. This is why i mentioned in the post above that it has not been unlocked yet.

Now as for your "overtaking M5 by several cars" i find that hard to believe unless M5 driver was sleeping. Fastest M550 (2020-2021) for 100-200kmh on dragy is 6.59s which is still in M5 stock territory, not to mention it was by set by someone using BM3 tune. Post your 100-200kmh run or 60-130Mph, lets see those magical numbers you're talking about.

Originally Posted by DB_BMW

I guess you are not aware that 2020 and 2021 have different ECU/DMEs even though it is the same engine. This is why i mentioned in the post above that it has not been unlocked yet.

Now as for your "overtaking M5 by several cars" i find that hard to believe unless M5 driver was sleeping. Fastest M550 (2020-2021) for 100-200kmh on dragy is 6.59s which is still in M5 stock territory, not to mention it was by set by someone using BM3 tune. Post your 100-200kmh run or 60-130Mph, lets see those magical numbers you're talking about.

Easy tiger, easy... ;~)

Carbahn's #'s were right at ~700HP/TQ. Not sure of M5C RWHP, maybe this is slightly more? It's certainly quite a bit more torque than a stock M5/M5C.

Attached is a 0-60 of 3.15 and 1 foot rollout 2.9 with an 8%+ slope. This was a bad launch with considerable wheel spin. Also attached is a 1/4 mile run. Only one I got. Says invalid, maybe because of -2% slope. However, it was flat where I started with a slight slope in the middle which was more than offset by a much greater slope for last leg of 1/4. And, even more telling, launch control wasn't working on this 1/4 run, which also had a lot of wheel spin. And the trap speed was right at 130MPH . The 0-60 on this run was 3.49. So .34 seconds slower than the aforementioned 3.15 0-60, with a lot of slip and no LC. I used another platform a few weeks back and clocked a 2.7 0-60 and 10.7 1/4. Not sure how accurate/reliable that platform was though. Thus the reason for purchasing the dragy...

So, entirely plausible that I walked an M5C. He was surprised too!

I will post another 1/4 mile run when I do the next one. In the meantime, was just sharing for purposes of this thread/conversation. Impressive gains with the tune on the newer engine.

[PaLaKaT]

Originally Posted by DrewBeez76

Easy tiger, easy... ;~)

Carbahn's #'s were right at ~700HP/TQ. Not sure of M5C RWHP, maybe this is slightly more? It's certainly quite a bit more torque than a stock M5/M5C.

Attached is a 0-60 of 3.15 and 1 foot rollout 2.9 with an 8%+ slope. This was a bad launch with considerable wheel spin. Also attached is a 1/4 mile run. Only one I got. Says invalid, maybe because of -2% slope. However, it was flat where I started with a slight slope in the middle which was more than offset by a much greater slope for last leg of 1/4. And, even more telling, launch control wasn't working on this 1/4 run, which also had a lot of wheel spin. And the trap speed was right at 130MPH . The 0-60 on this run was 3.49. So .34 seconds slower than the aforementioned 3.15 0-60, with a lot of slip and no LC. I used another platform a few weeks back and clocked a 2.7 0-60 and 10.7 1/4. Not sure how accurate/reliable that platform was though. Thus the reason for purchasing the dragy...

So, entirely plausible that I walked an M5C. He was surprised too!

I will post another 1/4 mile run when I do the next one. In the meantime, was just sharing for purposes of this thread/conversation. Impressive gains with the tune on the newer engine.

Do a 100-200kmh/60-130mph run. That will show a better picture. I have seen M5C do 3s and sub 3s stock 0 to 60.

[DrewBeez76]

Originally Posted by DB_BMW

Do a 100-200kmh/60-130mph run. That will show a better picture. I have seen M5C do 3s and sub 3s stock 0 to 60.

Will do. I did a 50-70 the other day as well. How does this time stack up?

[Joe-BMW33]

Originally Posted by JimMag

Does anyone know when we will be able to tune the 2021 m550ix ? I got this car expecting to do a catless down pipe and a tune. Had I know the tune wouldnt be available I would have ponyed up the money for a real M .
Im thinking about putting my car on swapalease and putting in an order for a 2022 M.
Any info out there about a tune?
Thanks, jim maguire

I say go for it. As much as the M550ix is a great value, it ain't an M5. If you have the resources go for it. Surprised you didn't in the first place if it is as simple as "ponying up".

[Boosted_8]

I would be happy with an M550i that runs 100-200 in high 6's. That means its as real world fast as an M5 Comp for a lot less money. I'm hoping I can get there with a Jb4 map2, 94 octane and some minor intake & exhaust changes.

[mike@x-ph.com]

You cannot flash tune it unless you bench flash the ECU, get the Jb4 or Race chip instead

[PaLaKaT]

Originally Posted by DrewBeez76

Will do. I did a 50-70 the other day as well. How does this time stack up?

So what happened to the M5C killer M550? Where are the dragy times (60 to 130mpg or 100 to 200kmh) that were promised?

[Boosted_8]

Just need BMW to hurry up and release the software fix for launching the 2021. All I need is that sub 3.4 second 0-60 to get into the 10's on JB4 map one.

[viaderro]

Hi,
What about warranty? If you make jb4 for example or anything else does the car send any data to bmw? I want to make any tune but im scared to loose warranty. I got price today from schnizer for 620hp box but it costs 10 000 usd here in Poland... they give their own warranty but you loose bmw warranty on mechanical parts. Is there any way to make tune and dont let bmw know about it?

[mike@x-ph.com]

Originally Posted by viaderro

Hi,
What about warranty? If you make jb4 for example or anything else does the car send any data to bmw? I want to make any tune but im scared to loose warranty. I got price today from schnizer for 620hp box but it costs 10 000 usd here in Poland... they give their own warranty but you loose bmw warranty on mechanical parts. Is there any way to make tune and dont let bmw know about it?

You will hear different opinions about the warranty but real-life data proven by hundred of thousands of users show that as long as you remove the JB4 before your dealership visit it will not be detected.

Unless you are asking the dealership to do a free engine, transmission or turbo repair, they don't care anyways.

[viaderro]

Originally Posted by mike@x-ph.com

You will hear different opinions about the warranty but real-life data proven by hundred of thousands of users show that as long as you remove the JB4 before your dealership visit it will not be detected.

Unless you are asking the dealership to do a free engine, transmission or turbo repair, they don't care anyways.

But does the car send any info in real time? I heared you need to keep car offline to be sure bmw wont know about the tune? Or its not true?

[mike@x-ph.com]

Originally Posted by viaderro

But does the car send any info in real time? I heared you need to keep car offline to be sure bmw wont know about the tune? Or its not true?

The info sent is mostly the mileage and service update. I have not seen any complaints about BMW finding out of a tune remotely.

[DrewBeez76]

Originally Posted by DB_BMW

So what happened to the M5C killer M550? Where are the dragy times (60 to 130mpg or 100 to 200kmh) that were promised?

Were you a math major by any chance 🤭🫣🥴 60-130 in 3 seconds…? 🤡

[Boosted_8]

Looking at my own dragy data for 100-200kmph (62-124mph), looks like map one Jb4 is good for 6.7s.

I've not done a dedicated 60-130 as all my stats come from 1/4 mile. The terminal of which is around 128mph.

Just looking at the F90 leaderboard on dragy for 100-200kmph the M5's without mods tend to cluster around low 7s high 6s. A scatter chart would have most of the hits around those numbers. There are always outliers with freaky low DA and owners who bullshit (tank full of Ethanol) claiming bone stock on pump etc