www.andersonfordmotorsport.com showed a new product at the Performance Racing Industry trade show last week. They have products for EEC-IV Mustangs and EEC-V Fords (all). The system is a piggy-back on the factory computer. It does not require a laptop to do the adjustments. An included control panel allows the access and alterations (full authority - not limited to just a few percent of change). It is a little pricey ($1100) but you won't outgrow it. Impressive!