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Description
2 EFI - Shiny - Returnless Style Drop-In Module - Without PDM - 3.5 in. HandheldHolley Sniper 2 EFI Shiny Base Kit With 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 - ShinyBase Kit - With 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: Shiny
- Flange Style: 4150
- Fuel Pressure: 58.5 PSI
- Fuel System: Universal Returnless 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
- PDM: No
- 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
4.7 ★★★★★
Based on 342 reviews
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Product Reviews
★★★★★ 2
Keeps lousy time
Color: Silver-Tone/Black
I purchased this watch off Amazon Warehouse well below MSRP out of curiosity to see what Timex is doing in 2024. The specs are good - bead blasted stainless case, solar movement with quick set date and hacking, sapphire crystal, screwdown crown and 100m water resistance. The movement is Japanese, case and bracelet are made in China, and the watch is assembled somewhere overseas.
The good - the watch is lightweight and comfortable on the wrist. Price, even at full MSRP makes this an extremely good value for what you get. It is a good looking Flieger style watch. Once fully charged it is keeping good time. Case finish is well executed and without rough or sharp edges.
The bad - the lume is weak. When blasted with UV, it fades quickly and within 5 minutes it’s gone. The bracelet is low end, but expected at this price point. I swapped it out with a nice leather strap from my collection with better quality spring bars and it makes the watch look and feel higher end.
The Ugly - the second hand misses nearly all the chapter ring marks. The minute and hour hands are aligned, but that second hand seems to have a mind of its own. On my watch it lines up with chapter ring marks maybe 10% of the time, but it’s not consistent.
Sum up, for a sub $200 watch the specs are great and it’s a good looking comfortable watch. Just keep your expectations aligned with what you are paying for. It compares favorably to Orients & Citizens at this price, and offers better value than comparable competitors now that Seiko has gone upmarket. I like this watch. Just don’t compare it to a Swiss watch costing several times its price.
Update after a few months: I’m changing my rating to 3 stars. This watch keeps lousy time! It is loosing around 5 minutes per month. And it is fully charged. I have other Solar quartz watches from Citizen, Seiko and Vaer which maintain very good accuracy. But this Timex … defeats the purpose of a solar powered “grab and go” watch when you have to correct the time each occurrence you want to wear it.
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Reviewed in the United States on February 1, 2024
★★★★★ 5
Great Watch with Great Sapphire Crystal
Color: Olive/Gunmetal
Waited 2.5 years before reviewing. I love the gunmetal grey case, olive dial, and the exceptional sapphire crystal. The watch is still running great. During cold weather when wearing long sleeves, I make sure I charge the watch monthly by placing it under a table lamp for many hours because it died once due to no daylight charging. One problem is being able to see the minute markings. (The same watch with blue dial is much easier to read.) I also replaced the military-style band immediately with the excellent Archer 20mm Olive band (ARC-QRN-OLV20) and Archer 20mm Matte Gunmetal buckle ( ARC-BKL-GRYM20). I am only allowed to review once for this Timex model, so adding comments about the "Blue" version (TW2V03600JR). The blue version is the same watch but easier to view. It looks GREAT with the Archer 20mm Navy Blue band (ARC-QRN-NVY20).
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Reviewed in the United States on October 19, 2025
★★★★★ 3
I design flaw caused me to return it.
Color: Brown/Blue
Pros:
- Perfect case size.
- Sapphire crystal.
- Solar powered quartz.
- Large dial face
- Minute and second hands reach to minute track for precise reading.
- Great field watch design and proportions.
- Effective lume on hands.
Cons:
- Lume on small triangular hour markers is useless, and fades quickly.
- The hour numbers are not luminous.
- The dull peach color chosen for the hour markers, numbers and hands in dim lighting is very dull and thus hard to read.
- The dark blue color chosen for the dial is a dull hue that doesn’t really look blue, but just reduces the contrast between text and markers.
- A black dial and bright white markers and numbers would make the watch much more legible/ readable, and would look much better aesthetically. It is a shame that these choices were made on an otherwise perfect design.
- I was really excited that Timex finally seemed to get it when they came out with this series of models, but then they handicapped it with a dial that is only useable in bright light. What a shame.
I am returning the watch.
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Reviewed in the United States on July 23, 2022
★★★★★ 5
Excellent Everyday Watch
Color: Black/Black/Digital/Silver Top Ring
Excellent quality for the price. Durable, stylish, and easy to use. Very happy with it.
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Reviewed in the United States on April 16, 2026
★★★★★ 5
Great watch overall!!
Color: Black/Black/Digital/Silver Top Ring
Rugged and sleek looking at the same time. Comfortable and light. Great functionality, too. Supper happy with this watch! Highly recommend.
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Reviewed in the United States on April 2, 2026
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