• Click HERE to ask your JB4 Question!
  • Car enthusiast? Join us on Cars Connected! iOS | Android | Desktop

Quick question about BEF tunes and such

globalrebel

Member
Joined
Jul 30, 2025
Messages
49
Reaction score
9
Points
8
So, I just want to get a good ECU and TCU tune and was thinking of going BMS using Ek1 mini or something.

However, I keep seeing people talking about the need for a JB4 to manage boost?

My thought was that the tune was set at a specific PSI and such, and I could just get the Ek1 mini and ECU and TCU tunes and call it a day?

Is it required to have the JB to even run the tune? I'm used to the Cobb AP where you flash it and can disconnect and its good to go.

I don't care to mess around with boost and CPI/WMI or anything.
 
Back
Top