Originally Posted by Rick

Out of the bolt on type, id have to go for the pace, as its the only single pass one that keep temps down. You lose 20hp on the GRS for any given charge temp. The NMS type are head and shoulders above anything else though, single twin or triple. I run more boost than most, but Karl found that the response of the engine was better on the twin core than triple core, with marginal diff in act's.

It is not easy to fit proerly, and u need to completely rethink ur water cooling setup.

Rick.