Hot Sale Holley 550-870k Sniper Efi Stealth 4150 Master Kit Polished Collection [namH1weN]

Holley 550-870K Sniper EFI Stealth 4150 Master Kit

The Holley 550-870K Sniper EFI Stealth 4150 Master Kit is a game-changer for your engine's performance and efficiency. This comprehensive kit is designed to seamlessly replace your existing carburetor with a state-of-the-art EFI system, offering advanced fuel injection and ignition timing control. With four 100LB/HR fuel injectors, it supports up to 650 HP naturally aspirated or 600 HP on forced induction applications, ensuring optimal power and performance. The Sniper Stealth 4150 ECU's self-learning fuel map and intelligent ignition timing control enhance idle stability, drivability, and wide-open throttle horsepower, making it an essential upgrade for any high-performance vehicle.

Key Features and Specifications

This kit comes with a bolt-on 4150 flange carburetor replacement, eliminating the need for additional mounting boxes. The throttle body-mounted ECU ensures a clean and compact installation. The all-wiring design exits below the rear fuel injector cover, providing a completely stealth appearance. The kit includes a timed spark part for vacuum advanced distributors, simplifying distributor access. The air entry is designed to fit most stock-style air cleaners, and the integrated ignition timing control ensures smooth operation. The simple calibration wizard, along with the high-resolution full-color touchscreen, makes initial setup and tuning a breeze, without the need for a laptop.

Benefits and Practical Uses

The Holley 550-870K Sniper EFI Stealth 4150 Master Kit offers numerous benefits. Its self-tuning ECU means you can enjoy the advantages of EFI without being a computer or tuning expert. The kit includes a Genuine Bosch LSU 4.9 Wideband Oxygen Sensor, providing real-time fuel map learning for enhanced performance. The OEM-style TPS/IAC and fuel pressure regulator ensure years of dependable service. The included clamp-on oxygen sensor kit for 2.25" exhaust ensures a leak-free installation, with stainless steel T-Bolt clamps and a weldable oxygen sensor flange. This kit is ideal for GM TH350/400, 200R4/700R4, and Ford C4/C6 applications, making it a versatile solution for a wide range of vehicles.