View Single Post
      01-02-2013, 09:32 AM   #2
bigdaddycane
I even mod my cereal
bigdaddycane's Avatar
United_States
35
Rep
2,711
Posts

Drives: Nothing cool at the moment
Join Date: Aug 2009
Location: Northern Va

iTrader: (35)

Garage List
The JB3 and JB4 modules are completely different; the boards are not the same. Ive had both and the JB4 is more advanced and has better maps. Power is much smoother and all the settings are better controlled with the the JB4. The Map 5 auto tune is really good on the JB4.

Also, the JB3 is no longer supported with firmware from BMS.

I highly suggest you pay the upgrade fee to go to the JB4, either G4 or G5 boards (latest version), it's that noticeable.
__________________
2011 Mineral White M3 ZCP
Stock for now

Last edited by bigdaddycane; 01-02-2013 at 09:41 AM.