Free Shipping On orders over $1,000
Expert Support Product. Support. Tuning.
Expert EFI Tuning Support TheEFIBrain 24 Hour Chat
Top Brands Holley, MSD, RacePak & More
Secure Checkout Safe & secure shopping

Home / Shop / Holley Sniper EFI Super Sniper Stealth 1250 - Black

Holley Sniper EFI Super Sniper Stealth 1250 - Black
Sniper EFI

Holley Sniper EFI Super Sniper Stealth 1250 - Black

Part # 550-877

$2,531.95

In Stock

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

Specifications

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

Product Video