Hello, I have fallen in love with an S4 and am seriously considering purchasing it this weekend. I'm really happy with the insurance rates versus an E36 M3 and WRX. That and the thought of twin turbos, manual transmission, and AWD.

Iwill beparking my 96Preludeto build it for racing. Thinking Honda Challenge or Time Trials. I'm getting certified to operate adyno and tune in September and I willprobably usea Greddy E-Manage Ultimate to tune it.

In my brief search, I have only found two engine management companies (APR/GIAC) for theS4 so far and their tuning software looks to be locked down. Anyone know who makes software that I could reflash the ECU with my own tune?