welcome to the forum :D theres filters, remapping, cams. look for performance produts for pug 205 gti 180(shares same motor). ive just changed the air filter to a free flow K&N pannel filter, not noticed any performance gain, just an increase in induction noise :unsure:. a few people with diesels (92, 110 and 138) are thinking about remapping, so i would hang on a while. cheers.