Ok, so I've been reading this and that, and I still am not seeing straight on the whole internals issue. If I were to say I was going to buy The APS TT system staying @6-7 psi do the internals need to be beefed up, or can the motor be completly stock. The driving application would be mostly daily driving w/spirited drives and some 1/4 runs. I have been doing searches and such and not really any clarification on this. Thanks for any help.