Sniper EFI Stealth 4150 Shiny Finish Master Kit

The Holley Sniper Stealth 4150 Master Kit offers carburetor aesthetics with modern fuel injection performance. This self-tuning EFI system is designed for easy installation with just four connections, delivering improved engine performance, better MPG, and easier starts. It supports up to 650 HP naturally aspirated and 600 HP boosted with four 100 Lb/Hr injectors. The system features a simple calibration wizard that creates a base map and then self-tunes without a laptop. It includes a high-resolution 3.5" full-color touchscreen for tuning and gauge displays. Transmission kick-down provisions are included for GM TH350/400, 200R4/700R4, and Ford C4/C6 applications. The kit comes with a complete return fuel system, a 4.9 wideband oxygen sensor, OEM style TPS/IAC, fuel pressure regulator, Stainless Steel T-Bolt clamps, and a weldable Stainless Steel oxygen sensor flange. It fits most stock-style air cleaners and integrates with other Holley Sniper Ecosystem components. An external fuel pressure regulator set to 58.5 PSI is required.