This is a repost in this section as I posted in the wrong section before!! Doh!! Anyway my original post was: ... I've recently bought an Audi A3 2.0 TDi 140 and was wandering if anyone has any experience of fitting a tuning box to one of these cars? I've bought a digital box for around £300 rom ChipExpress, but I'm a bit concerned about any long term or short term damage that these chips may cause to the engine. I've noticed some old threads speaking about these in 2008, however I'm wandering if anyone has used these for any period of time with or without any problems? I have been considering a full remap but want to avoid breaching the warranty as much as I can. Also the best quote I've had here in Jersey is £600!!! which seems a bit mad! Thanks for any advice you guys can give.