For those who are interested:

Tomei unequal length headers - before vs after tune...

ASG dyno graph/plot will be posted once I can freakin' upload it but in summary:

BEFORE
303hp - 385Nm - 1.4bar - 11.7afr - fullboost 4600rpm

AFTER
339hp - 424Nm - 1.5bar - 11.8afr - fullboost 4400rpm

Only mod was upgrade of standard headers to Tomei unequal length which were heat wrapped to hell (thanks Jimmah)

Happy with the gain.

Cheers
Ed