Part # 550-877
$2,531.95
If you're looking to make some big power, the Super Sniper Stealth is made for you! Holley's Sniper EFI Super Sniper Stealth 1250 is the best way to convert your carbureted engine to fuel injection with just 4 simple connections required. Super Sniper can support up to 1250HP boosted with 8 100 LB/HR Injectors. With a Stealth 1250 system, you get that carburetor styling but the functionality of a Sniper! This 4-barrel system features a single pattern bolt on design built to fit 4150 flange manifolds. The Super Sniper Stealth ECU is capable of fuel map self-learning and ignition timing control, improving idle stability, drivability, and wide-open throttle horsepower. Additionally, this Sniper kit also includes transmission kick down provisions for GM TH350/400, 200R4/700R4, and Ford C4/C6 applications!
Features & Benefits
Included clamp-on oxygen sensor kit for 2.25" exhaust ensures a leak free oxygen sensor installation, with Stainless Steel T-Bolt clamps and a Stainless Steel (Weldable) oxygen sensor flange
Fits: Supports Up To 1250HP Boosted - 3.5 in. Handheld Monitor - Carburetor Styling
Installation note: Part # 534-247 is required to complete installation.
In the box: Fuel Injectors, Throttle Position Sensor
| Accelerometer Support | No |
| Boost Control | No |
| CAN-BUS Support | No |
| CFM | 870 |
| Coil Per Cylinder Ignition Support | No |
| Datalogging Support | Yes |
| Dry Nitrous Control | Yes |
| EGT Support | No |
| Finish | Black |
| Flange Style | 4150 |
| Forced Induction Support | Yes |
| Fuel Pressure | 58.5 PSI |
| Height | 3.28" |
| Ignition Timing Control | Yes |
| Individual Cylinder Fuel Corrections | No |
| Injector Size | 100 lb/hr @ 58.5 PSI |
| Inlet / Outlet Size | 3/4-16 Female O-Ring (AN 8) |
| Knock Retard Support | No |
| MAP Sensor | 2 Bar |
| Max Horsepower Rating | 1250 Forced Induction |
| Model | 4150 EFI Conversion Throttle Body |
| Multi-Stage Nitrous Control | Yes |
| Progressive Nitrous Control | Yes |
| Self-Tuning | Yes |
| Traction Control Support | No |
| Transmission | 700R4/200R4, Ford C4/C6, TH350 |
| User-Tuneable | Yes |
| Wet Nitrous Control | Yes |
| e85 Support | No |
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