Pay in installments of $181.25 with
,
and
Shipping Estimate
USA
- USA
- CAN
- USA
- CAN
Ships within 48 hours · Estimated delivery Aug 20 - Aug 25
Promo Codes Available:
For Your Every Summer RSVP, with Code: SUMMER15
Description
base-kit-3-5-in-handheld-sniper-2-efi-black-550-511-3xxThe #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
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.
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
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
4.2 ★★★★★
Based on 6 reviews
Sort
Product Reviews
★★★★★ 5
Great book, the battle descriptions should've been more detailed
Format: Hardcover
The book looks great, both the dust jacket and the book cover are printed with the cover image.
The dust jacket is textured with a matte finish and shiny silver text, while the book cover looks exactly like the front cover image provided here on Amazon (with a glossy finish). In my opinion, the dust jacket looks better.
The book itself looks great. The texts are a bit too short for my taste though, as I would've like to read more detailed descriptions of each battle. Read the sample of the Battle of Marathon that's provided here. It will give you a good idea of the level of detail provided for each battle. Also, some of the battles that didn't get the full 2 page treatment were, in my opinion, significant and were deserving of getting it (Battle of Kadesh for example), while some less significant battles did get it, oddly enough.
All in all, I'd definitely recommend the book, but it does have a few shortcomings mentioned above.
PS. Also, Amazon, please work on your packaging. Add a few of those (styro)foam pieces with the book or something. My book did arrive mostly ok, and mostly unscathed, but when I picked up the package, the book was moving freely inside the banged up package. I'd say I got lucky it didn't get damaged too badly (apart from a few minor impact traces -- I'd say condition it arrived in was 9/10).
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 28, 2019
★★★★★ 4
Very good book with a few minor flaws
Format: Hardcover
As most books published under the DK banner, this is a visually excellent book that is a pleasure to look at. It is well written and chock-full of outstanding illustrations and maps. I do have a few minor "ding" though. First, I think that the book should have included a "why" the battle changed history. While in most cases, this rationale is included in the text, in a few cases one has to wonder "why" this battle was important; for example, they chose the World War I battle of Verdun, but they also said that the battle was "inconclusive"; if so, how did it change history? Second, I have to question the choice of some of the battles. For example, the editors list "Arnhem", which ended up as a costly allied failure, but fail to mention the wildly successful Soviet "Operation Bagration", which destroyed the German Army Group Center. Third, there were some minor factual inaccuracies. The battles of Passchendaele and Dunkirk were both shown on a map as being located in Northern Italy instead of northern France, while Operation Overlord, the Allied invasion of France, was shown on a map as being more at Pas de Calais vice the beaches of Normandy. In spite of these nits, this is a good book worthy of belonging in you library. Four stars.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 7, 2020
★★★★★ 5
Excellent
Format: Hardcover
Great book for history lovers
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on July 27, 2025
★★★★★ 5
This history book won’t make you sleep
Format: Hardcover
My brother-in-law is kind of hard to buy for, but I know that he’s a history buff, so I purchased this book. He loved it! If you have someone in your life that is difficult to buy for or just a history buff I highly recommend this book. It is great value easily understood and has beautiful pictures.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on August 2, 2025
★★★★★ 5
Awesome Book for lovers of history and battles.
Format: Hardcover
This book is a great addition for a history lover or a military history lover. It would make a nice coffee table book too. Information is arranged in an easy to understand grouping throughout the book. Illustrations add to the book too. It is a heavy well made book.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 19, 2023