VK - The 600/65 engines have both more displacement and more cylinders to start with, hence the less initial lag.

I dont think the 997TT's lag is "confidence sapping" its not bad at all. Turbo PSE for 5K? Lots of options for that now from AWE, Fabspeed and others.

Got PDK blues? Notice that the F1 and Duo clutch packs in Ferraris and Maseratis hardly meet Porsche durability standards.They wont even warranty them from new and a owner needs a Papal blessing to get 10,000 miles of life from one.

Powerkits - who here is actually that skilled to extract ALL of whats in their TT now? See any Carrera Cup or LeMans pilots posting here.