Simon Coe, the UK Upsolute 'dealer' can do either soldered in chips or OBD downloads for most applications. I've had a few of his soldered chips with no problems, he's not a cowboy solderer! I trained as an electronics engineer in another life many eons ago and can vouch that he does a thorough job with the proper gear. It's not as if you have to worry about warranty issues either with a mk2 Beezer! But I think he seems to do mostly OBD tuning now - I'll ask him.