ECU EZ-EFI

The ECU EZ-EFI from FAST Electronics is a dedicated engine control unit designed for street and performance vehicles running aftermarket EFI systems. Built for enthusiasts and professional tuners who demand precise fuel and ignition management, this compact ECU delivers real-time engine optimization without the complexity of full engine bay rewiring. Whether you're running a carbureted-to-EFI conversion, LS engine swap, or forced-induction build, the EZ-EFI bridges the gap between OEM reliability and custom tuning flexibility.

This control module integrates seamlessly with modern fuel injection and ignition systems, allowing you to dial in air-fuel ratios, timing curves, and boost parameters through a user-friendly interface. The compact 6.4 x 2.7 x 11.9-inch housing and lightweight 1.25-pound design fit easily under the dash, in the glove box, or mounted to the firewall, minimizing installation footprint while maintaining robust heat management. FAST Electronics engineered the EZ-EFI with datalogging capabilities and real-time sensor feedback, meaning you capture performance data during tuning sessions and adjust calibration on the fly without dealer-level diagnostics equipment.

Mechanics and fabricators favor the EZ-EFI for retrofit projects where OEM computers cannot accommodate modified fuel delivery, ignition advance, or non-standard sensor inputs. Installation requires basic wiring knowledge and compatibility with aftermarket fuel injectors and coil packs; most professional shops complete fitment in 4–6 hours. Ideal for muscle car restorations, swap builds, and performance upgrades, the ECU EZ-EFI delivers the control precision that separates a tuned engine from a guessing game.