$163 Off

Holley Sniper 2 550-510-3PR Return Style EFI Kit, Polished

$163 Off

#4255505103PR

Holley Sniper 2 550-510-3PR Return Style EFI Kit, Polished

Return Style Drop-In Module - With PDM - 3.5 in. Handheld
Only four wiring connections required
Self Tuning

Finish:

Polished

Fuel System:

Universal Drop In Module

Not Included Master Universal Returnless Drop In Module

Hyperspark Ignition Kit:

Power Distribution Module:

User Interface:

3.5 In. Handheld

$2,199.95

/each

In Stock

$2,362.95

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Product Summary

Throttle Body Injection Style, 800 CFM CFM, Self Tuning

Return Style Drop-In Module - With PDM - 3.5 in. Handheld
Only four wiring connections required
Self Tuning
Supports up to 650HP
4150 Flange

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Key Specs

Injection Style	Throttle Body
Injector Size	100 lb/hr
Max Horsepower Rating	650
ECM Included	Yes
Throttle Body Style	Throttle Body Injection (TBI)

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Holley Sniper 550-510-3PR Details

The #1 selling EFI conversion just got better…again! We’re bundling our top selling Sniper 2 packages and passing along maximum savings! Available for small block Chevrolet, big block Chevrolet, and 8.2-inch deck small block Ford (5.0 base), these kits include a HyperSpark distributor, HyperSpark coil, and a HyperSpark 2 ignition box. Coupled with a 3.5” or 5" color LCD touchscreen handheld, Power Distribution Module (PDM), and either a base or master (in-line fuel system) Sniper 2 kit, these are the most complete Sniper EFI conversion kits ever offered by Holley. The PDM module was specifically designed to provide the easiest wiring experience for Sniper 2 kits that are paired with a HyperSpark ignition. Simply slide the stripped wire ends under the positive lock connector and tighten down the set screws. Battery power, ground, and a switched 12V source are all that's required from your vehicle to power the PDM and your Sniper 2 system.

Make your classic drive like a modern fuel injected vehicle, including better cold starts, smooth drivability, and improved fuel economy. Sniper 2 was designed to be installed at home in your garage with limited tools and the support of Holley's comprehensive installation manuals and online videos. The handheld user-friendly setup wizard has you answer a few simple questions about your engine and the system will begin self-tuning with no laptop or tuning experience required. If you're looking for a high-performance fuel injection system that delivers power, efficiency, and ease of use, look no further than the Sniper 2 EFI system. Take complete control and make the conversion to EFI with a Sniper 2 EFI HyperSpark Ignition bundle.

Features:

Cast-in fuel crossover from the primary to secondary fuel rail
Ignition box keeps all the features of its predecessor in a smaller and lighter design, providing a clean installation, precise timing control, and consistent spark energy from idle to redline for optimal performance
Available with or without fuel system, the complete fuel system consists of 20 ft. of 3/8 in. Vapor Guard fuel hose, fuel pump, fuel pressure regulator, filters, necessary hardware, and bulkhead fitting to return fuel into the tank
Geometrically redesigned throttle shaft and plate for a smoother throttle feel
Hyperspark Ignition:
Supports up to 650 hp naturally aspirated or 575 hp boosted with (4) 100 lb./hr. injectors
Power Distribution Module (PDM) was designed to keep your installation stress free by listing a wiring diagram to connect your system to the dedicated circuits
Next generation ECU features improved RF noise and interference resistance (protects against outdated car wiring, noisy alternators, faulty plug wires, etc.)
Patented clear installation cap eliminates confusion while installing the distributor with a marking indicator
Only (4) wiring connections required; the Battery+, Battery-, Switched Ignition, and RPM
Sniper 2 EFI Bundle includes a Power Distribution Module (PDM), HyperSpark 2 ignition box, coil, and a Chevrolet or Ford distributor (depending on your application)
Billet aluminum construction unit plugs directly into the main harness and features a Hall Effect crank trigger for a noise free RPM signal to the ECU
Integrated ignition coil bracket simplifies mounting the ignition coil while delivering up to 150 mJ of spark energy per second from idle to redline
Sniper 2 Kit:
Integrated transmission kick down provisions for GM TH350/400, 200R4/700R4 and Ford C4/C6 applications (Sniper 2 Transmission Control Kit and vehicle specific harnesses not included, both available separately)
Sniper 2 Bluetooth module turns your iOS or Android smartphone into a tuning and monitoring interface with a base map to get started and no laptop required

Guides & Documents

Fuel Injection Systems Installation Instructions (4255505103PR)

Fuel Injection Systems Warranty (4255505103PR)

CARB Warning

For use on pre-1966 vehicles only

Emissions warning: this part only legal for sale or use in California if installed in vehicles model-year 1965 or older; motorcycles model-year 1977 or older; or off-highway recreational vehicles (such as off-road motorcycles and all-terrain vehicles) model-year 1996 and older. ++any other use renders the vehicle tampered and not legal for use on California public highways (any public street or roadway, public dirt road, public park, or publicly maintained right of way open to the use of the public for vehicular travel). Violations subject to $37,500 penalty per violation per vehicle, revocation of registration, loss of use on California public right of ways, and proof of correction for tampering there are similar restrictions and penalties under federal law and the laws of all other states with penalties under federal law of up to approximately $45,268 per tampered vehicle and/or engine.

CA WARNING:

Can expose you to lead, a carcinogen and reproductive toxicant. See www.P65Warnings.ca.gov

CARB warning

Holley Sniper 550-510-3PR Specifications

KEY SPECS
MFG. Part #	550-510-3PR
Brand	Holley Sniper
Injection Style	Throttle Body
Injector Size	100 lb/hr
Max Horsepower Rating	650
ECM Included	Yes
Throttle Body Style	Throttle Body Injection (TBI)

GENERAL
CFM	800 CFM
User Tunable	Yes
Self Tuning	Yes
Injectors Included	Yes
Intake Manifold Included	No
Throttle Body Included	Yes
Fuel Pump Included	Yes
Calibration Module Included	Yes
Distributor Included	No
Color	Polished
GTIN Code	090127864654
Sold in Quantity	Each
Timing Control Compatible	Yes
Filter Included	No

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