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Description
2 EFI - Black - Return Style Drop-In Module - Without PDM - 3.5 in. HandheldHolley Sniper 2 EFI Black Inline Pump Without PDM 3. 5 in. Handheld Overview The #1 EFI conversion system just got better! Introducing Sniper 2 EFI a self tuning, easy to install, EFI conversion for common 4 barrel (4150 flange) style carburetors. We took everything that we learned from the original Sniper EFI system and added 14 new features that will make your EFI conversion more simple, reliable, and modern. Like all Sniper EFI systems, Sniper 2 is
Holley Sniper 2 EFI - BlackInline Pump - Without PDM - 3.5 in. Handheld
Overview
The #1 EFI conversion system just got better! Introducing Sniper 2 EFI - a self-tuning, easy-to-install, EFI conversion for common 4-barrel (4150 flange) style carburetors. We took everything that we learned from the original Sniper EFI system and added 14 new features that will make your EFI conversion more simple, reliable, and modern. Like all Sniper EFI systems, Sniper 2 is designed to work with the Sniper Ecosystem that includes Hyperspark ignition, complete fuel systems, multiple user interfaces/dash displays, and more. New for Sniper 2 is the optional Power Distribution Module (PDM). This cost-effective and optional accessory isolates the core of your EFI and ignition wiring into one, easy-to-use location. Simply slide the stripped wire ends under the positive lock connector and tighten down the set screw. Battery and a switched 12-volt source is all that's required from your vehicle to power the PDM and your Sniper EFI. Make your classic drive like a modern fuel-injected vehicle, including easy cold starts, smooth drivability, and improved fuel economy! Sniper 2 is designed to be installed at home in your garage with limited tools and the support of Holley's comprehensive installation manual and videos. The user-friendly setup wizard allows you to 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.
Nitrous Control Not Supported In Sniper 2 EFI Software
Features:
- Main Features
- All new design ???? the #1 EFI Conversion just got better!
- Only four wiring connections required: Battery+, Battery-, Switched Ignition, and RPM
- Calibration wizard only requires that you answer a few simple questions about your engine to create a base map and begin self-tuning ???? No laptop required
- Supports up to 650hp naturally aspirated or 575hp on boost with four 100 lb/hr injectors
- (NEW) Next generation ECU features improved RF noise and interference resistance (stands up to old car wiring, noisy alternators, faulty plug wires)
- (NEW) Redesigned throttle shaft and plate geometry for a smoother throttle feel
- Sniper 2 is Part of the Sniper EFI Complete Ecosystem
- Sniper 2 is compatible with the complete Sniper EFI Ecosystem that includes plug-n-play Hyperspark Ignition systems (coil, ignition box and distributor), fuel systems (fuel lines, fuel pump hangers), multiple displays and more
- (NEW) Main harness includes plug-and-play HyperSpark distributor support, for integrated timing control, making your ignition setup hassle free
- (NEW) Adaptors for other ignition types sold separately: 558-329 CD Box to Sniper 2, 558-330 MSD Pro Billet / Crank Trigger to Sniper 2
- (NEW) Wide Variety of tuning and gauge display interfaces: from a 3.5-inch full color LCD Handheld, 5-inch Digital Dash, or the Bluetooth dongle, which allows you to connect either an iOS or Android based cell phone to your Sniper 2
- (NEW) Optional Power Distribution Module (PDM) further simplifies wiring, especially when used in conjunction with an ignition system
- Available with fuel system kits: a complete fuel system consisting 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
- Additional Features
- (NEW) Integrated transmission kick down provisions for GM TH350/400, 200-4R/700R4 and Ford C4/C6 applications
- (NEW) Hidden Harness??? wiring harnesses exits from the rear of throttle body for a clean appearance
- (NEW) Inputs and outputs consist of: 2x Ground Inputs, 2x Ground Outputs, 1x TPS output (0-5v), and 1x Tach Output
- (NEW) Redesigned injector connector for improved reliability
- (NEW) Onboard contactless magnetic TPS sensor ensures an accurate TPS reading
- (NEW) Next Generation mil-spec style M8 positive lock connector for CAN1 and CAN2 provides the latest in CAN bus technology for a simple yet robust connection
- (NEW) Cast-in fuel crossover from the primary to secondary fuel rail
- (NEW) Sniper 2 throttle bodies are serialized in house, which provides each unit a birth certificate for an improved customer service and warranty experience in the event of any unit needing to be inspected
- The included genuine Bosch LSU 4.9 wideband oxygen Sensor provides real-time fuel map learning
- Included clamp-on oxygen sensor kit ensures a leak free oxygen sensor installation with stainless steel T-Bolt clamps and a stainless steel weldable oxygen sensor flange
- Patent Pending
Details:
- CFM: 800
- Coast Guard Approved: No
- Finish: Black
- Flange Style: 4150
- Fuel Pressure: 58.5 PSI
- Fuel System: Universal Drop In Module
- Injector Size: 100 lb/hr @ 58.5 PSI
- Inlet / Outlet Size: 9/16-18 Female O-Ring (AN 6)
- MAP Sensor: 2Bar
- Max Horsepower Rating: 650 Naturally Aspirated
- Model: 4150 EFI Conversion Throttle Body
- Power Distribution Module: No
- Transmission: All
- User Interface: 3.5 in Handheld
Links
Sniper 2 Quickstart Guide
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.4 ★★★★★
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Product Reviews
★★★★★ 5
Smooth Operation
Color: Brushed Aluminum, Style: No Light Kit
This Fan has exceptional airflow and operates smoothly. I use the included remote control. It took a little white to install and it’s fairly heavy, but besides that, it’s great.
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Reviewed in the United States on November 30, 2022
★★★★★ 5
Great for kids!
Color: White
I bought this stylus for the kids to use with their iPads, and it definitely gets the job done. It connects easily, charges fast, and works smoothly for drawing, writing, and playing around on apps.
The palm rejection is a big plus—it makes it a lot easier for them to use without messing up what they’re doing. It’s also pretty responsive, which I wasn’t necessarily expecting at this price.
Overall, it served its purpose well. If you’re looking for something affordable and functional for kids (or even light everyday use), this is a solid option.
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Reviewed in the United States on April 22, 2026
★★★★★ 5
Rock-Solid Apple Pencil Replacement for iPad Mini
Color: White
Despite the box arriving pretty beat up inside the Amazon packaging, the pen itself was in perfect condition and it’s been outstanding.
It works flawlessly with my iPad Mini (Gen 7, A17). The physical on/off button is a standout feature for me; the tactile click is far more satisfying and reliable than the touch-sensitive controls found on other pens.
I primarily use this stylus while flying, taking notes in the air, and it performs exactly how I need it to. The magnetic attachment is especially impressive because it’s strong enough to add real security inside my iPad case. Even in rough air, I don’t have to worry about it getting knocked loose.
I previously used a pencil from another brand that worked fine overall, but the weak (or nonexistent) magnetic hold was a dealbreaker. This one solves that problem completely and when it came time to buying a new pencil because I lost the old one, this was my choice.
If you’re looking for a dependable, well-built Apple Pencil replacement with a solid magnetic connection and a satisfying physical control, this is an easy recommendation. You also CANNOT go wrong with the price!
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Reviewed in the United States on May 2, 2026
★★★★★ 5
Perfect stylus for my iPad.
Color: White
This stylus works great! It was easy to set up, and is perfect for my needs. The pen is the perfect weight and seems to be made of good material. I anticipate it will last a long time. The pen came charged and I still haven’t charged it. If you like using a stylus on an iPad, this one feels just like using a pencil. I like to write, so this has been a great choice.
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Reviewed in the United States on April 9, 2026
★★★★★ 5
Great product!
Color: White
I have now purchased two of these (I lost the first one) and they are absolutely a worthwhile purchase. Nicely packaged, easy set up, works great! Battery life is great and the pencil charged fairly quickly as well. Size of the pencil is wonderful, easy to hold and grip. Quality is great as well. 5 stars from me, hopefully I don’t lose this one! 🤣
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Reviewed in the United States on June 7, 2026