I think I have decided just to go for the usual tuning for my N/A so no more annoying "swapping engine questions" entries..

Products needed -->

Sprintbooster
TB 74mm
dual CAI from TVT or is it Eurocharged?
ECU-tuning from TVT

Probably go for a TVT250 package.
Easy install no hassle with a new engine not working or not passing the MOT..

Anyone got partnumbers and best retailers for the above mentioned products?