Originally Posted by tomctx
Turner Motorsport chips are made by Conforti. Go to www.unofficialbmw.com
, click on the E36 icon, scroll down to "performance". There is a write-up on the JC and Dinan chip. They put each chip in a car and ran some laps at Watkins Glen. I haven't read it in a while, but the gist was, the JC chip was better all-around, while the Dinan chip worked it's magic at higher rpms. There are others, but these two seem to be the most purchased.
I almost purchased a Dinan chip, but after I read this article I have decided to go with Turner Motorsport