I have a new Sportwagen TDi. I'd like to buy a reliable plug and play chip/module or whatever you call it. I apologize for my lack of knowledge. I did try to search the forums but there are so many acronyms and technical terms I thought I'd start a new thread. Here's what I'd like:
I have 5 years of included maintenance, and extended warranty from VW. I want to be able to unplug the module before service visits.
I'd like mileage and performance boost if possible.
There are so many options when you search for this stuff. I don't know where to start or which webpage to believe. I've seen these things listed for $75-$600.
Thanks for your advice in advance.