Programmers & Tuners

FAST EFI systems are ready to take to the sea with the self-tuning EZ-EFI Marine kit that features the proven performance and reliability that comes standard in all FAST EZ-EFI systems. The marine system upgrades the poor cold starting and rough idle...

FAST EFI systems are ready to take to the sea with the self-tuning EZ-EFI Marine kit that features the proven performance and reliability that comes standard in all FAST EZ-EFI systems. The marine system upgrades the poor cold starting and rough idle...

Engineers at FAST have developed complete bolt-on EZ-EFI Fuel Multi-Port Electronic Fuel Injection Kits that allow anyone to install a multi-port injection setup on Small and Big Block Chevy and Small Block Ford engines that were originally carbureted...

Engineers at FAST have developed complete bolt-on EZ-EFI Fuel Multi-Port Electronic Fuel Injection Kits that allow anyone to install a multi-port injection setup on Small and Big Block Chevy and Small Block Ford engines that were originally carbureted...

Engineers at FAST have developed complete bolt-on EZ-EFI Fuel Multi-Port Electronic Fuel Injection Kits that allow anyone to install a multi-port injection setup on Small and Big Block Chevy and Small Block Ford engines that were originally carbureted...

Engineers at FAST have developed complete bolt-on EZ-EFI Fuel Multi-Port Electronic Fuel Injection Kits that allow anyone to install a multi-port injection setup on Small and Big Block Chevy and Small Block Ford engines that were originally carbureted...

A complete laptop tunable EFI system for LS series engines is now available with ignition control under one part number. This kit makes it easier than ever to take full control over your LS series engine. Capable of running with boost and rowdy...

Blow-through applications that are traditionally carbureted now have the option to utilize an EFI setup. This XFI Sportsman-based system replaces the carburetor with an easy-to-install EZ-EFI 2.0 Fuel + Injection System throttle body. It supports up to...

most users will use Speed Density but the Alpha-N option is specifically added to serve sportsman drag racers looking for absolute consistency. The FAST XFI Sportsman System features full tables to monitor fueling, acceleration fuel, timing and air/fuel...

Bolt FAST EZ-EFI technology onto your LS engine with a FAST EZ-EFI Engine Kit. Including our FAST EZ-EFI Fuel ECU and Multiport Harness, in-tank fuel pump, an XIM ignition control and TCU tranmission controller, this is the most complete EFI induction...

Bolt FAST EZ-EFI technology onto your LS engine with a FAST EZ-EFI Engine Kit. Including our FAST EZ-EFI Fuel ECU and Multiport Harness, inline fuel pump, an XIM ignition control and TCU tranmission controller, this is the most complete EFI induction...

The EZ-EFI GM LS Engine Transplant Kits allow anyone to easily run a GM LS Gen III/IV engine and transmission outside of the original vehicle and factory controller. These FAST kits are the perfect no-headache solution for transplanting late model...