Right the boost control is currently controlled by an HKS EVC.

When i has going round Knockhill hill yesterday i noticed It wasn't always making proper Boost.

Sometimes it would jut go to 1.6 bar other time it would reach its target of 2 bar. What i was wondering is this problem just down to this electronic boost controller?

Should i just go Air to air?

What is all the items i need for air to air? Any adjustments needed to the ecu to run this??