if your running say 125bhp on standard injectors you will get 20bhp from 172 injectors, FMIC and a good map, intercooler on its own you would get few bhp at most, the standard intercooler aint that bad. the only issue with it, at least on the twingo is that it gets completely blocked up on the rear side due to the dirt and water coming in thru the arch liner, mine was that bad it was actually allowing ZERO percent air to travel past it, it was thick with mud, 5 minutes and a pressure washer later and it was as new, good bit about the location of the intercooler is you suffer no stone chip damage, although you dont get maximum air flow, im looking to get a spare fog light surround and make a fancy duct like the Nismo skyline one for the oil cooler!
not sure if the wind uses the same cooler.
in reply to your original question, the labour cost between fitting an uprated and standard clutch will just be the same yes so any garage that can fit a normal clutch can fit your uprated one. its a pretty easy job although still labour time intensive by book time.
i wouldnt hold your breath for the ktec one, as much as i like their mail order and they generally make decent products (or atleast use decent suppliers) - ive heard loads and loads of suggestions that they are making this and that and it never ever happens. they had a GT demo car when they first came out and any parts they were going to make they would have made for that... remember the GT decat pipe????
