Killshot 2 Pro Fuel Kits

Fuel Kits:

Killshot 2 Pro EFI Fuel Kits are perfect for those upgrading from a carburetor or stock fuel injection and who already have EFI-compatible ignition components. Each EFI Fuel Kit comes with a standalone EFI system and a complete fuel delivery system. 

Standalone Overview:

Killshot 2 Pro EFI System

The Killshot 2 Pro is the ultimate evolution of our throttle body EFI lineup—built on the proven foundation of Killshot 2 and enhanced with deeper tuning control, dual-quad capability, and upgraded hardware. It includes every feature of Killshot 2 plus expanded tables and strategies for serious builders who want maximum flexibility and precision. Over the past two years, we’ve gathered real-world feedback from tuners, racers, and street enthusiasts to refine and improve every aspect of the system. The result is an EFI package that’s more powerful, more versatile, and even easier to install and tune.

Why upgrade from a carburetor?

Carburetors demand constant compromise. EFI doesn’t. Killshot 2 Pro dynamically adjusts fuel delivery in real time for weather, altitude, and load—eliminating hesitation, cold-start issues, and the need to re-jet for changing conditions. Expect precision fuel control, improved throttle response, and seamless adaptability whether you’re cruising in traffic, blasting down the strip, or hunting laps at the track.

Engineered for power and durability

At the core is a high-speed 32-bit ECU delivering fast, accurate engine management for naturally aspirated and boosted combos. An integrated 3-bar TMAP sensor supports up to 27 psi of boost for turbo and supercharged applications. Each throttle body carries four 100 lb/hr injectors, comfortably supporting up to 650 HP per unit. Need more? Run dual-quad and fuel up to 1,200 HP (requires an additional slave unit; second unit sold separately).

Maintaining proper fuel pressure is critical for EFI performance. The Pro’s built-in fuel pressure sensor gives you real-time fuel pressure monitoring, ensuring consistent delivery under all conditions—no external sensors or guessing.

Remote-mounted ECU for reliability

Many EFI systems bury the ECU inside the throttle body, where heat and vibration shorten lifespan. Killshot 2 Pro uses a separate, remote-mounted ECU to keep electronics cool, stable, and serviceable for the long haul.

Expanded tuning & control

Killshot 2 Pro takes tuning further while keeping day-to-day operation simple:

• 31×31 VE Fuel Tables – Higher resolution across the full load/RPM range.
• 31×31 MBT Spark Tables – More precise ignition control under any condition.
• Closed-Loop Learning (expanded resolution) – Smarter corrections for street and mild builds.
• Self-Learning Strategy (clarified): The system does not “self-tune” end-to-end. You select a base calibration matched to your combo; the ECU refines fueling as you drive. Ideal for stock-to-mild engines. Aggressive setups—high-lift cams, forced induction, or nitrous—benefit from manual tuning for optimal results.
• Progressive Throttle Linkage – Smoother, more linear tip-in for excellent street manners versus “on/off” TBI behavior.
• Boost Control & Fuel Level Inputs – Hardware-ready for future software unlocks (e.g., boost-solenoid control, dash integration).

Handheld + PC software

Every Pro system includes our 3rd-generation 5" HD touchscreen handheld for setup, data viewing, and real-time diagnostics. For advanced users, the Pro PC Tuning Suite provides manual access to AFR targets, ignition strategies, boost enrichment, and more.

Built for easy installation & maximum compatibility

EFI conversions shouldn’t be complicated. Killshot 2 Pro is designed for straightforward installs and broad compatibility:

• Fits 4150-flange 4-barrel intake manifolds (universal 4-barrel fitment)
• Low-profile throttle body design works with more air cleaner setups—including drop-base filters
• Standalone or Complete Kit options to match your build plan

Who it’s for

Whether you’re refining a weekend cruiser, dialing in a high-compression race motor, or pushing a turbocharged street car, Killshot 2 Pro delivers the reliability and power of modern EFI with the simplicity of a 4-barrel TBI—plus headroom to grow.

System features (all the benefits of Killshot 2, plus more)

• Supports up to 650 HP per unit (NA) / up to 1,200 HP in dual-quad (NA)
• Four 100 lb/hr fuel injectors per throttle body
• Integrated 3-bar TMAP sensor – Supports up to 27 psi boost
• Built-in fuel pressure sensor – Real-time fuel pressure monitoring for precise control
• Progressive throttle linkage – Smooth response and drivability
• Remote-mounted ECU – Improved reliability and serviceability
• TPS output – For transmission controllers, nitrous activation, and other external modules
• 4150 flange – Universal fitment for 4-barrel intake manifolds
• Low-profile design – Compatible with more air cleaner options, including drop-base filters
• Available finishes: Black, Polished, Gold
• Standalone or Complete Kit Options – Choose the package that fits your build

What you can expect

• Faster starts in all weather, stable idle quality, and crisp throttle response
• Consistent fueling on the street, track, or strip—even with altitude and temperature swings
• Easy initial setup with room to grow into advanced tuning as your combo evolves

Killshot 2 Pro gives you everything enthusiasts love about Killshot 2—and then some. If you’re upgrading from a carburetor or stepping up from a basic EFI, the Pro is the intelligent path to fuel, tune, and dominate with confidence.