When Holley Performance introduced the original Sniper EFI system back in 2015, it kicked off a revolution in fuel injection conversions. The goal was simple: Make EFI simple and affordable for folks who’re looking to make the jump without completely reinventing their vehicle’s setup.

Designed to work with traditional carburetor intake manifolds, the self-tuning Sniper system integrated virtually all of the EFI system components into one compact unit that occupied the same space as a carburetor, which allowed a would-be Sniper owner to maintain a period-correct look with the original air cleaner while still enjoying the benefits of contemporary fuel injection.

To learn more and shop Sniper 2, click here.

In the time since the Sniper EFI line has expanded to include support for everything from stock mid-60s inline-six Ford engines with the Sniper EFI Autolite 1100 to 1500-horsepower Pro Street monsters with the Sniper EFI Stealth 4500 while also introducing a wide range of supporting fuel system components to make conversion process even simpler. Now, after years of development that has included nearly 5000 hours of test stand run time, extensive thermal testing that included temperature sweeps between -40C and 200C, and thousands of real-world miles on a variety of engine platforms, Holley Performance is ushering in the next chapter of Sniper EFI with the Sniper 2 system.

“The new system benefits from everything we’ve learned with Sniper 1 as well as the feedback that customers have provided to us,” explains Matt Lunsford, the lead engineer of Sniper 2 at Holley Performance. “The throttle body, linkage, and key elements of the circuitry have been redesigned from the ground up for Sniper 2, and it offers a host of new features and capabilities. The development of the new system also provided us with the opportunity to streamline the system component selection process to ensure that customers get something that meets the specific needs of their project – whether that’s a basic EFI conversion, or something more comprehensive.”

Updated and Upgraded

While Sniper 2 features a familiar software interface for its calibration and tuning feature, the hardware that the software controls has seen significant revision. Noise rejection testing on benches and in-vehicle platforms with known radio interference issues has resulted in revamped internals that now boast on-board contactless throttle position sensors. “The design of the throttle linkage has been reworked to provide an enhanced pedal feel,” Lunsford says.

“We made throttle extension arms for the first-generation Sniper systems for folks who had some concerns about overly-sensitive throttle response, and here we’ve redesigned the linkage to integrate that behavior into the standard Sniper 2 system. It now has provisions for kick downs built into it as well, so the throttle response is generally much more progressive.”

Like the original, the standard Sniper 2 is outfitted with four 100lb/hr injectors that support up to 650 horsepower and 575 horsepower on boost, but the new system benefits from a number of clever tweaks that improve upon the original’s design. For example, the new cast-in internal fuel crossover eliminates an external rubber line and its requisite fittings, which further cleans up the look and provides some peace of mind by removing a potential leak point from the equation.

“The new design sends all of the harnesses directly out of the back of the housing too for a cleaner installation” he notes. “And there’s a new connector on the harness that’s designed specifically to plug into our Hyperspark distributors, which cleans wiring up even more.”

The options don’t end there. Sniper 2 includes a variety of screen display options. From the tried and true 3.5-inch, large 5.0-inch display, to the all-new Bluetooth module that enables your iOS or Android phone to become the display. The larger handheld will offer twice the screen resolution along with deeper customization options, and it will include a built-in GPS speedometer as well as a dash mount.

Tailored To The Task

System modularity was another area of focus during the development of Sniper 2. Those efforts have yielded a system that not only offers customers the ability to integrate optional upgrades like the aforementioned wireless module and 5-inch display down the road, it also provides the flexibility to dial the system into the specific needs of a particular project right from the get-go.

“The new Power Distribution Module (PDM), for example, has been designed as an option specifically for folks who’re wiring an ignition in conjunction with their Sniper 2 EFI system,” says Lunsford. “And that can simplify the wiring situation substantially – you’ve only got three connections from the car, and that allows the vast majority of your engine-side electronics to run off of the PDM. If you’re planning to do a basic installation you may not need the PDM, but if you want full ignition control or you’re planning to upgrade the ignition later on, it’s a great option.”

A selection of different kits will be offered as well, which should help to eliminate the need to hunt around for ancillary components like fuel pumps and other supporting parts for the conversion. The Sniper 2 Returnless Master Kit, for instance, includes everything you’ll need to install the universal drop-in-style pump in an existing fuel tank. “It has the pre-filter on it as well as a built-in regulator,” Lunsford points out. “So with this, you can essentially just run one line up to the throttle body.” A return-style kit is also available, which includes the same roster of components aside from the pump module, as this setup utilizes an external regulator.

Over 200 EFI conversion fuel tanks, drop-in modules, filters, and other accessories are also available. Due to the array of options that are now available to tailor the Sniper 2 to the specifics of a particular application, Holley Performance has also developed a new website configurator that will guide customers through the system customization process step by step to ensure that they get what they need.

“With the level of kit customizations that are available with this new system, it just made sense to approach it this way,” he says. “Instead of jumping around looking for information about each option or component, this integrates everything into one place so you know exactly what you’re getting.” An all-inclusive video walk-through covering topics that range from the configuration process to unboxing and installing the Sniper 2 system will provide additional layer of user support as well, and QR codes found in the instruction manual will call up the related portions within it. “There’s also a QR code on the throttle body itself,” he adds. “And that will bring you directly to the Sniper 2 knowledge base and support page. It’s that simple.”

Ready to take your project to the next level with the performance, drivability, and tuning capabilities of a contemporary hot rod? The next generation of the world’s most popular aftermarket EFI system is available now.