This Sniper 2 EFI upgrade kit lets an existing Holley Sniper EFI owner move to the improved Sniper 2 platform without rewiring the vehicle. An adapter harness connects the new Sniper 2 throttle body directly to the existing Sniper EFI main harness, so the swap is a plug-and-play throttle body change followed by a fresh calibration wizard run. This polished kit includes the Bluetooth tuning module and an external fuel pressure regulator.
Key Features:
- Eliminates the need to rewire an existing Sniper EFI installation - a one-step, plug-and-play upgrade to a Sniper 2 throttle body
- Bluetooth module turns an iOS or Android smartphone into a tuning and monitoring interface, with a base map to get started and no laptop required
- Includes an external, adjustable fuel pressure regulator so the upgrade can be completed without swapping the existing fuel system
- Redesigned throttle shaft and plate geometry for a smoother throttle feel
- Next-generation ECU with improved RF noise and interference resistance for reliable operation on older vehicle wiring
- Reuses the existing coolant temperature and wideband oxygen sensors from the original Sniper EFI installation
- Onboard contactless magnetic TPS sensor for accurate, drift-free throttle position readings
- "Hidden Harness" wiring exits from the rear of the throttle body for a clean installation
- Cast-in fuel crossover from the primary to secondary fuel rail
- Each throttle body is individually serialized for streamlined customer service and warranty support
Specifications:
- Flange Style: 4150
- Finish: Polished
- User Interface: Bluetooth Module
- Fuel Pressure Regulator: Included
- Part Number: 550-510-BAE
This kit is a direct plug-and-play upgrade for existing Holley Sniper EFI installations; a full specification table was not available in the source data for this listing (see note below), so specs are limited to confirmed details.
Nitrous control is not supported in Sniper 2 EFI software.
FAQ
Do I need to rewire my vehicle to install this upgrade?
No. The included adapter harness connects the new Sniper 2 throttle body to the existing Sniper EFI main harness, so it's a plug-and-play throttle body swap.
Does this kit include a fuel pressure regulator?
Yes, this version includes an external, adjustable fuel pressure regulator.
How do I tune the system after installing it?
Connect an iOS or Android smartphone via the Bluetooth module and run the calibration wizard - no laptop is required.
Is nitrous control supported?
No, nitrous control is not supported in Sniper 2 EFI software.
