JB4 help

DrivenAgain · 04-01-2021, 01:16 PM

Update: uninstalled the JB4, reinstalled and triple checked all connections. The CEL cleared right away. I then drove around for a bit, then filled up with a fresh tank of E30. Switched to Map 3 and ran a 6.84 60-130
Happy Customer.

limeypride · 04-01-2021, 03:04 PM

Quote:

Originally Posted by DrivenAgain

Update: uninstalled the JB4, reinstalled and triple checked all connections. The CEL cleared right away. I then drove around for a bit, then filled up with a fresh tank of E30. Switched to Map 3 and ran a 6.84 60-130
Happy Customer.

Great numbers!

Menacef90comp · 07-08-2021, 04:15 AM

Jb4 is cheap Nd will mess your car up.Lol real world.

limeypride · 07-08-2021, 06:09 AM

Quote:

Originally Posted by Menacef90comp

Jb4 is cheap Nd will mess your car up.Lol real world.

pbonsalb · 07-08-2021, 06:55 AM

Used incorrectly or unwisely, any tune can cause problems.

vladdy3f · 07-31-2021, 09:07 AM

will the jb4 work on a 2021 M5 LCI?

limeypride · 07-31-2021, 09:43 AM

Quote:

Originally Posted by vladdy3f

will the jb4 work on a 2021 M5 LCI?

It works on an M8 and I believe their internals are very similar. Regardless, I see no reason why not unless they've changed the TMAP and/or EWG connectors which is highly unlikely.

Email terry(at)burgertuning(dot)com and ask him.

AngryInch · 07-31-2021, 10:37 AM

Quote:

Originally Posted by vladdy3f

will the jb4 work on a 2021 M5 LCI?

Yes it will

DealerCounsel · 08-07-2021, 11:32 PM

Quote:

Originally Posted by jmorgan911

Have jb4 installed. Live in NJ. It runs flawlessly. Had jb4 on multiple prior cars.

Willing to compare to other tunes ANYTIME, ANYWHERE.

Where did you go in NJ to get it installed ?

pbonsalb · 08-08-2021, 07:01 AM

You can install it yourself.

AngryInch · 08-08-2021, 01:44 PM

Please keep us updated to what you find. Im installing the JB4 next week.

vladdy3f · 04-21-2022, 05:33 PM

Quote:

Originally Posted by FSociety

PM sent willing to compare to other tunes ANYTIME, ANYWHERE too!

Careful because if you say your experience they take it as shit talking

just installed my jb4 on my M8C GC ready to run someone to see how strong she is

04-01-2021, 01:16 PM	#45
DrivenAgain MFJWADE 120 Rep 351 Posts Drives: 2018 BMW M5 Join Date: Dec 2020 Location: MD iTrader: (0)	Update: uninstalled the JB4, reinstalled and triple checked all connections. The CEL cleared right away. I then drove around for a bit, then filled up with a fresh tank of E30. Switched to Map 3 and ran a 6.84 60-130 Happy Customer.
	Appreciate 1 kingmonkeyjr454.50 Quote

07-08-2021, 04:15 AM	#47
Menacef90comp Menacef90comp 0 Rep 2 Posts Drives: F90 M5 lci Join Date: Jun 2021 Location: California iTrader: (0)	Jb4 is cheap Nd will mess your car up.Lol real world.
	Appreciate 0 Quote

07-08-2021, 06:55 AM	#49
pbonsalb Lieutenant General 5237 Rep 10,616 Posts Drives: 18 F90 M5, 99 E36 M3 Turbo Join Date: Feb 2011 Location: New England iTrader: (4)	Used incorrectly or unwisely, any tune can cause problems.
	Appreciate 0 Quote

07-31-2021, 09:07 AM	#50
vladdy3f New Member -1 Rep 17 Posts Drives: 23 BMW M3C X-Drive Join Date: May 2021 Location: New Jersey iTrader: (0)	will the jb4 work on a 2021 M5 LCI?
	Appreciate 0 Quote

08-08-2021, 07:01 AM	#54
pbonsalb Lieutenant General 5237 Rep 10,616 Posts Drives: 18 F90 M5, 99 E36 M3 Turbo Join Date: Feb 2011 Location: New England iTrader: (4)	You can install it yourself.
	Appreciate 0 Quote

08-08-2021, 01:44 PM	#55
AngryInch Lieutenant 213 Rep 548 Posts Drives: 2021 BMW M5 Comp Join Date: Jul 2021 Location: Canada iTrader: (0)	Please keep us updated to what you find. Im installing the JB4 next week.
	Appreciate 0 Quote