Sniper 2 EFI Master Kit Return Retrofit

The Sniper 2 EFI Master Kit Return Retrofit from Holley is designed for engine builders and performance mechanics looking to upgrade carbureted or older fuel-injected engines to modern EFI management. This retrofit kit allows for the use of existing fuel system infrastructure, making it ideal for restoring classic muscle cars, hot rods, or vintage trucks.

Holley's Sniper 2 platform provides integrated engine management with real-time fuel and ignition control, along with tuning capabilities via a handheld device or smartphone interface. The return-style fuel system design efficiently routes excess fuel back to the tank, which helps reduce heat generation and prolongs fuel pump life, particularly beneficial for high-performance or summer-driven vehicles.

This retrofit kit is particularly advantageous for street rodders and restomod builders, as it simplifies installation while enhancing fuel economy and cold-start reliability. It includes essential components like the ECU, wiring harness, and sensors, ensuring a comprehensive solution for those looking to modernize their engine management system.