One of the best aftermarket "chips" that's out there is the TwEECer. If you are very car savvy, then this would be a wonderful investment. You can edit your EEC by yourself. I have one, the RT version. Check out
www.tweecer.com for details. If you decide to order it, go to
www.madhatterracing.com and ask for Hilary.... tell her that I sent ya
