This Sniper 2 EFI upgrade kit lets an existing Sniper EFI installation switch to Sniper 2 without rewiring. An adapter harness connects the original Sniper EFI main wiring to the new Sniper 2 throttle body, so the swap is a matter of removing the old throttle body, plugging in the new one, and running a fresh calibration wizard — typically in under an hour.
Key Features:
- Eliminates the need to rewire an existing Sniper EFI installation — one-step, plug-and-play upgrade to a Sniper 2 throttle body
- Reuses existing coolant temperature and wideband oxygen sensors
- Update from Sniper EFI to Sniper 2 in less than one hour
- All-new throttle body design with redesigned throttle shaft and plate geometry for smoother throttle feel
- Onboard contactless magnetic TPS sensor for accurate throttle position readings
- "Hidden Harness" wiring exits from the rear of the throttle body for a clean appearance
- Next-generation mil-spec M8 positive lock connectors for CAN1/CAN2
- Integrated transmission kickdown provisions for GM TH350/400, 200-4R/700R4, and Ford C4/C6
- Cast-in fuel crossover from the primary to secondary fuel rail
- Next-generation ECU with improved RF noise and interference resistance
- Compatible with the full Sniper EFI ecosystem — HyperSpark ignition, fuel systems, and multiple display options
- Sniper 2 throttle bodies are individually serialized for improved warranty and service tracking
- Available with optional fuel system kits that include an adjustable external regulator, fittings, and hose to mount the regulator in the engine bay
Specifications:
- Product Type: Sniper EFI Fuel Injection Conversion Kit, Upgrade Adapter
- Flange Style: 4150
- Max Horsepower Rating: 650 hp naturally aspirated
- Injector Size: 100 lb/hr @ 58.5 PSI
- Fuel Pressure: 58.5 PSI
- Fuel System: Not included (reuses existing Sniper EFI fuel supply)
- Fuel Pressure Regulator: Not included
- MAP Sensor: 2 Bar
- Inlet/Outlet Size: 9/16-18 Female O-Ring (AN 6)
- Power Distribution Module: Not included
- User Interface: 5 in. Handheld
- Transmission Compatibility: All
- Finish: Black
- Height: 3.28 in.
- Warranty: Two Year Standard, Extended via Product Registration
- Part Number: 550-511-5AX
Nitrous control is not supported in Sniper 2 EFI software. This is an upgrade kit for vehicles already running original Sniper EFI — it is not a standalone, ground-up conversion kit.
FAQ
Do I need to rewire my vehicle to install this upgrade kit?
No. An adapter harness connects your existing Sniper EFI main wiring to the new Sniper 2 throttle body, so no rewiring is required.
How long does the upgrade take?
Typically under an hour — remove the old Sniper EFI throttle body, install the Sniper 2 unit, plug in the adapter harness, and run the calibration wizard.
Can I reuse my existing sensors?
Yes, the kit reuses your existing coolant temperature and wideband oxygen sensors.
Does this kit include a new fuel system?
No, it's designed to reuse your existing Sniper EFI fuel supply. It does not include a fuel pump, regulator, or PDM.