Holley Sniper 1 to Sniper 2 EFI Black 4150 Upgrade Kit w/ Bluetooth

Holley:
550-511-BAX

Highlights

  • Plug-and-Play Sniper 2 Upgrade
  • Bluetooth Tuning & Monitoring
  • Reuses Existing Wiring & Sensors
  • Fits 4150 Sniper EFI Systems
MSRP $1,237.95
$1,099.95
You save 11%
Product Description

Holley Sniper 1 to Sniper 2 EFI Black 4150 Upgrade Kit w/ Bluetooth Interface Module for Existing Sniper EFI Systems.

Bringing an existing Sniper EFI system up to current Sniper 2 technology can improve drivability, throttle response, and wireless connectivity without replacing the entire EFI setup. This Holley Sniper 1 to Sniper 2 EFI black 4150 upgrade kit provides a fast plug-and-play solution for upgrading an existing Sniper EFI throttle body while reusing current wiring and sensors to simplify installation and reduce conversion time.

Features and Benefits:
 
- Upgrade from Sniper EFI to Sniper 2
 - Plug-and-play Sniper 2 upgrade kit
 - Bluetooth tuning and monitoring included
 - Reuses existing wiring and sensors
 - Self-learning base tune setup wizard
 - Improved throttle response and system reliability
 - Hidden harness routing for cleaner installation
 - Black finish throttle body included

Applications:
 - Vehicles currently equipped with Sniper EFI 4150 throttle body systems

Installation can typically be completed in under one hour using the integrated setup wizard that automatically generates a self-learning base tune without requiring a laptop or prior tuning experience. Once installed, the system continuously self-tunes to improve drivability, cold starts, throttle response, and fuel efficiency. The included Bluetooth interface module enables wireless tuning and real-time monitoring through compatible mobile devices for modern system control and convenience. Sniper 2 improvements include redesigned throttle shaft and plate geometry for smoother throttle response, improved RF interference resistance for greater reliability, updated CAN bus communication, hidden harness routing for a cleaner engine bay appearance, and a contactless magnetic TPS sensor for accurate throttle position readings. The system also reuses existing coolant temperature and wideband oxygen sensors while maintaining compatibility with the complete Sniper EFI ecosystem for future ignition, display, and fuel system upgrades. A black finish throttle body completes the upgrade with a clean, performance-focused appearance.

Kit Includes:
 - Sniper 2 EFI 4150 throttle body
 - Bluetooth interface module
 - Required upgrade hardware

Specifications:
EFI System Type: Throttle Body Injection (Upgrade Kit)
Carburetor Flange: 4150 Square Bore
Finish: Black
Control Interface: Bluetooth, Mobile
Fuel System Components: Reuses Existing System
Power Distribution Module: Not Included

Please Note:
 
- Designed only for upgrading existing Sniper EFI systems.
 - Not a complete EFI kit – Fuel system components not included.
 - Sniper 2 EFI software does not support nitrous control.
 - Always verify fuel system capacity and application compatibility prior to ordering.

California Residents: Proposition 65 Warning

Related Categories: EFI Conversion Kits

Only for use on pre-pollution controlled vehicles: This product can be used on vehicles that were manufactured before emissions control regulations were imposed. Pre-pollution vehicles are defined as:

  • 1965 and older U.S. manufactured California certified vehicles
  • 1967 and older U.S. manufactured federally certified vehicles
Installation & Fitment

Vehicle Fitment

This product will fit the following Camaro years:

  • 1967,
  • 1968,
  • 1969,
  • 1970,
  • 1971,
  • 1972,
  • 1973,

This product will fit the following Chevelle years:

  • 1964,
  • 1965,
  • 1966,
  • 1967,
  • 1968,
  • 1969,
  • 1970,
  • 1971,
  • 1972,

This product will fit the following El Camino years:

  • 1964,
  • 1965,
  • 1966,
  • 1967,
  • 1968,
  • 1969,
  • 1970,
  • 1971,
  • 1972,
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