T-top Coupe’s engine has always been directed by FAST’s XFI EFI system. During the project’s down time, we sent the original XFI processor back to FAST, where it was upgraded with new XFI technology (2.0). The engine-management system’s new features, which include Qwik Tune Technology and advanced forced-induction controls, are highlighted by a cool “self-learning” function that literally brings brand-new engines to smooth idle and good driveability shortly after they’re started for the first time. Intelligent Traction Control also is now included in XFI 2.0 processors. We didn’t have time to experiment with ITC during this test, but we definitely plan on trying it out. Upgrades are available in two forms: software only for $49.95 and a software/ECU package for $99.95.