I have been looking for ways to boost my 96' 1.9 up a bit without spending 3K for a supercharger. While checking the archives I found info on a Dinan chip upgrade and a chip upgrade from a Jim C. I am fairly new to the message board but have noticed that people have very strong opinions about this Jim C. guy. I gathered that his work was top-notch from what I read. How do I reach him? Any opinions on the subject? Will a chip upgrade require any other changes to the car? Will normal driving MPG be affected much? Sorry for all the questions but any help would be appreciated!