FAST Wideband O2 wiring harnesses are your connections to air/fuel monitoring. When you need gauge accessories to keep the information flowing in your XFI system, FAST wideband O2 wiring harnesses...
These FAST XFI converter cables feature Qwik Tune technology, which allows for ECU programming without a laptop. XFI cables can process, analyze, and adjust four times faster than previous EFI...
Hardware Improvements The XFI uses the latest in flash microprocessor technology to deliver a significant increase in processing speed. This means the XFI can process, analyze and adjust four times...
