In Reply to: Is the performance gain noticable w/Jim C. chip? posted by Louis on April 02, 2000 at 22:31:29:
The Jim C. chip is great. I did notice an increase in power and the smoothness of the power is prominent. I also got a boost in gas mileage. The chip is a great upgrade for the 525i, and from what I have heard and read, Jim C. is the best.