hi gibbo i did get a gain in power mainly mid range not much more top end about 112mph on clock as for fuel its not better i got about 4to 5mpg less than stock, to get more power you have to put more fuel into motor i will put the place on later when i find the card i also had a full stainless exhaust with the cat took off, but some one run into the back of me and rote the my car off so i bought it back off the insurance so i bought another arosa tdi but it is just standard (for the minute) billy CHIPBOOST BINNINGTON WOLD STAXTON SCARBOROUGH NORTH YORKSHIRE MOBILE 07977475955