[MSport35TT]

Originally Posted by mrbillytalent

Very informative thread. Thanks to those involved.

Thanks I've searched and only been able to find bits and pieces for these questions. I thinks it's better now there in one spot.

N54 has a write up that Terry made. Cover a lot on the JB

[MSport35TT]

Originally Posted by boostaholic786

If you already have to COBB and are running E85 say 40/60 E85/93 mix then you can run the JB4 G5 ISO without the cobb but even still I would download the BMS flash to the COBB then upload to your ECU and get the JB4 G5 ISO and select correct firmware and settings (drop down menu shows: (G4 N54), (G4 N54w/BMS flash, 1M, 335is) G5 ISO, G5 ISO w/BMS flash or 1M or 335is, and there are alot more but choose the G5 ISO w/BMS flash and throw in around 10 gallons E85 the rest 93 and your car will be a ROCKET. If you get codes its probably to much E85 without the Walboro LPFP

Can you provide the link as to where you can download the JB4 G5/ Cobb Flash and/or other Firmware updates?

[marv85]

Originally Posted by MSport35TT

Can you provide the link as to where you can download the JB4 G5/ Cobb Flash and/or other Firmware updates?

go to your newer thread. posted there

[MSport35TT]

Originally Posted by marv85

go to your newer thread. posted there

Ok Thread closed please referr to:

http://www.e90post.com/forums/showth...2#post13865192

for further reference!!! Thank you to all who have participated to this very informative thread