[225]

Getting waaay ahead of myself but...
www.burgertuning.com/B58_JB4_bmw_performance_tuner.html

I have something similar on my mazda 6 and it certainly makes a difference.

[AlanYoro35i]

You haven't been on the BMW scene for long have you? The JB4 is a very well known and popular tune that goes back way from 2007 when the first turbo charge engine came out and it has continued over new platform.

[SCZ4]

The very fact it says Beta, I'd stay away for now until properly released.

[225]

Originally Posted by AlanYoro35i

You haven't been on the BMW scene for long have you? The JB4 is a very well known and popular tune that goes back way from 2007 when the first turbo charge engine came out and it has continued over new platform.

Indeed not but from my limited research a lot of people do indeed use jb4 tuning especially state side and thats how I came across this.

I was merely pointing it out as being available (in a more tested form) soon for the 340. Need to be more descriptive in my posts..