wouldn't bother with td06, get Danes kit or run a td04, maybe even a GT2871R- dantheman ran one at over 300bhp on a 4efte at 1.5 dont go silly high on boost like cal said at 1.7 or above. yeah the engine can go to it but why push it to it's limits? just do some major research before diving in, there's also maintenance costs. with 200-300 bhp you need 200-300 bhp brakes, tyres have to hold up, suspension, good oils, good tune etc the list goes on and on