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BMW 3-Series and 4-Series Forum (F30 / F32) | F30POST > Technical Forums > N20, N26, B46, B48 Turbo Engine / Drivetrain / Exhaust Modifications > ECU Remap 420i LCI (B48)
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      09-06-2021, 10:17 AM   #1
KarimS
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ECU Remap 420i LCI (B48)

Hi guys,
So my '18 420i F36 just turned 4 years old, and while I love it, I always felt it was a little underpowered for obvious reasons. So I thought maybe I should remap this thing and enjoy the last 3-4 years of driving this car before I upgrade.
As I understand, the 430i from the same generation has the same B48 engine, which would mean my car can be remapped easily and gain about 75-80hp, I believe. I'm a little bit (a lot?) of a noob with these things, so I was wondering:
- Do I need to change any parts in the car/ engine?
- What are the risk involved? Will my engine lose some of its shelf life by me doing this?
- Is it relatively easy to do? Or do I need to do extensive research and find someone who is highly 'skilled' at this?
- Any other tips, or things I should be concerned about?

Thanks!

EDIT: I have some coding applied to ID6 (CarPlay, VIM, some others...) and I heard that remapping the ECU may brick iDrive if its been tampered with. any idea?
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      09-10-2021, 07:56 AM   #2
demirkiranecu
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i accelerated my car

I had the values ​​on this site applied to my vehicle and I am very satisfied. Does anyone have better knowledge about this subject, do you think I may have made a mistake?

https://carecufile.com/en/performans...&aracmotor=844
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