Killshot 2 Pro EFI System
Chosen by 80% of our customers
Power Distribution Module (PDM)
Discover the next evolution in performance and reliability with the Aces Fuel Injection Power Distribution Module (PDM) —your ultimate solution for seamless power management in high-performance EFI systems. The PDM uses IGBT transistors in the place of solid state or electro-mechanical relays which helps to filter bad transient voltage, ultimately providing greater protection for your electronics which are connected to the PDM.
Our PDM is engineered to integrate effortlessly with Aces Fuel Injection Systems, providing robust, efficient power distribution for essential components such as:
- Ignition Systems
- Fuel Pumps
- Cooling Fans
- Auxiliary Accessories
Key Features
- Comprehensive Power Management: Supports ignition, fuel pumps, fans, and more.
- Simplified Wiring: Clearly marked terminals for ease of installation.
- Enhanced Safety: Fuse-protected circuits for optimal performance and reliability.
- Flexibility: Tailored control for auxiliary devices with relay support.
Pressure Sensor Kit
Aces EFI pressure sensor kits utilize top-quality parts for use with EFI systems. Kits include plastic/steel sensors with 1/8" -27 NPT threads and include a -6 AN fuel pressure take-off adapter fitting and 2 sets of 45 push lock hose ends.
Pressure sensors are great for logging oil pressure, fuel pressure, or boost pressure. Display the pressure reading on any Aces Handheld or Dash screen and on your data log files!
EGT CAN Module Kit
High-Performance Tuning with the Aces EGT Module
When it comes to high-performance tuning, accurate Exhaust Gas Temperature (EGT) monitoring is crucial. Whether you're running a naturally aspirated, turbocharged, or nitrous-fed setup, precise temperature data helps you optimize fuel tuning, prevent engine damage, and maximize efficiency. The Aces EGT Module is built for precision, durability, and seamless integration, ensuring you get real-time data to fine-tune your engine like never before.
Why You Need the Aces EGT Module
- Prevent Engine Damage – High exhaust temperatures can lead to pre-detonation, melted pistons, and turbo failures. Monitoring EGTs allows you to adjust fueling and timing before damage occurs.
- Optimize Air/Fuel Ratios – Fine-tune your AFRs based on real-time EGT data for better power, efficiency, and reliability.
- Monitor Cylinder Balancing – Detect uneven fuel distribution or ignition issues to avoid power loss and potential engine stress.
- Essential for Forced Induction & Nitrous Builds – Turbocharged, supercharged, and nitrous-fed engines run hotter. Accurate EGT readings ensure you're not pushing past safe limits.
- Seamless Integration with Aces EFI Systems – Easily expands via CAN connectivity to work with all Aces controllers and displays.
Aces EGT Module Features
- 32-bit RISC-V Core Processor – Ultra-fast processing for real-time data accuracy.
- 480MHz Multi-Stage Pipeline Processor – Handles high-speed temperature changes with precision.
- Hardware Floating-Point Unit (FPU) – Ensures stable, high-speed calculations for consistent performance.
- 16-bit ADC for High-Precision Signal Acquisition – Delivers accurate, reliable temperature readings.
- Supports 2 or 4 EGT Channels – Ideal for both single-bank and dual-bank monitoring setups. (2 channels for two banks, 4 channels for one bank but 4 per exhaust runner)
- Automotive-Grade Type N Thermocouple Sensor – High-durability sensor for extreme conditions.
- Wide Temperature Measurement Range – Capable of reading from -150°C to 1024°C with a rapid 150ms response per channel.
- High-Quality Construction – Silicone fiberglass sleeve, PTFE insulation, and Type N thermocouple conductor ensure long-term durability.
- CAN Expansion Accessory – Easily integrates with all Aces EFI units and display modules.
The Aces EGT Module is an essential tool for serious tuners and racers looking for accurate exhaust temperature data, better tuning capabilities, and enhanced engine protection. Take control of your performance with real-time monitoring and seamless EFI integration.
Low Profile Design
A smaller footprint design makes it easier to work with drop-base air cleaners.
Progressive Linkage
Ensures a more gradual and less jarring tip-in response.
650 HP
Single Throttle Body¹
1,200 HP
Ran as dual quads²
Fuel Pressure Sensor
Built-in for less plumbing hassle and a precise reading of your fuel pressure at all times, displayed in the handheld.
Secondary Throttle Body Connection
Enables the use of a dedicated secondary unit³ making the system expandable for dual quad options.
(Requires purchase of secondary unit available early Spring 2025)
Hold your horses
Supporting up to 650 HP and expandable to 1,200 HP by using a dedicated secondary unit, the Killshot 2 is capable of holding down the fort, and the horses.
Boost it, baby.
The Killshot 2 has a built-in 3-bar TMAP sensor that allows you to run draw-through or blow-through setups and support up to 27 lbs of boost.
Twice the Killshot. Twice the resolution.
Introducing the 3rd generation of our 5" Handheld, now in full 1080 HD. This new generation of handheld is built on a 64-bit RISC-V core processor. This means that graphics load faster, clearer, and smoother, much like a modern smartphone.
If the shoe (throttle body) fits
The Killshot 2 still uses the common 4150 style flange found on many classic engine manifolds, making it very versatile when it comes to compatibility. As long as the TBI unit fits, is within the appropriate HP range, and your engine uses a classic distributor, it's a match made in heaven...or the garage.
Know with the flow
A built-in pressure sensor gives you real-time, accurate fuel pressure readings at the throttle body, ensuring optimal performance and peace of mind. No guesswork, just precision.
Product Info
Overview
Killshot 2 Pro EFI System
The Aces Killshot 2 Pro isn't just an upgrade, it's a statement.
Built for the driver who refuses to settle, this 4-barrel throttle body EFI system replaces your carb or outdated EFI with modern precision and raw power. Using a 4150-style flange and a recessed base, it drops right onto single or dual-plane manifolds. With support for up to 650 HP naturally aspirated and 575 HP under boost, the Killshot 2 Pro is made to feed whatever you're building: street bruiser, boosted weekend warrior, or nitrous-hungry drag car.
An integrated 3-bar TMAP sensor supports up to 27 psi of boost for turbo and supercharged applications, while four 100 lb/hr injectors comfortably feed up to 650 HP per throttle body. Need more? Run dual-quad and fuel up to 1,200 HP (requires an additional secondary throttle body unit and larger pump; both sold separately).
It's already compatible with blow-through, draw-through, and nitrous setups right out of the box. And when our boost control software update lands in Fall 2025, the hardware inside is already ready to run with PWM boost solenoid control for true precision under pressure.
Power Meets Simplicity
At Aces, we build EFI systems that make serious power simple.
The Killshot 2 Pro is a DIY-friendly system designed for enthusiasts of all skill levels. Wire it in, answer a few setup questions, fire it up, and the self-learning ECU takes over by fine-tuning your fuel maps automatically. For most street builds, that's all it takes. For the tuners who want total control, our free laptop software unlocks full manual tuning access, which is ideal for mild to aggressive builds running high-lift cams, forced induction, or nitrous.
Once your engine reaches operating temperature, the system goes closed-loop and starts learning in real time. After a few drives, your tune dials itself in, and when you're happy with it, you can disable learning and lock it down. That's confidence you can feel at every throttle blip.
Ignition Compatibility
Whether you're running an HEI, canister coil, or aftermarket system like MSD or Holley, the Killshot 2 Pro plays nice. It can also digitally control timing with a Hall-effect or mechanically locked magnetic distributor and works seamlessly with CD ignition boxes.
If you're looking to go all-in, Aces offers complete Hall-effect and magnetic distributors, ignition coils, and fuel systems designed to work together for maximum reliability and spark control.
Choose Your Setup
We know every build is different, so we made the Killshot 2 Pro modular. Build it your way and save while you do it.
- Standalone Kit: Includes the throttle body, ECU, wiring harness, and your choice of interface.
- Fuel Kit (Standalone + Fuel System): Adds a complete fuel system to your existing ignition setup.
- Top End Kit (Standalone + Distributor + Coil): Adds ignition components to your existing fuel system.
- Master Kit (Standalone + Fuel System + Distributor + Coil): Everything you need for a full carb-to-EFI conversion.
Choose any of these pre-built options and save 5% off the whole kit.
Interface Options
Choose how you want to set up and monitor your system:
- Bluetooth Module: Connects to Android (iOS support coming Fall 2025) through our free Aces Connect app.
- 5” Handheld Touchscreen: Full-color display with built-in GPS for real-time MPH.
- 7” Handheld Touchscreen: Bigger screen, same powerful features, also GPS-ready.
All three interfaces let you view RPM, speed, sensor data, live tuning metrics, and much more with customizable layouts. Bluetooth users will get GPS speed readouts with the Fall 2025 firmware update.
Engineered for Real Performance
The Killshot 2 Pro doesn't just look tough, it's built that way.
Every component is designed for precision, durability, and real-world performance.
- Remote-Mounted ECU: Unlike systems that bury electronics inside the throttle body, the Killshot 2 Pro keeps its ECU separate. This remote-mounted design protects it from heat and vibration, ensuring long-term reliability and easy serviceability.
- Cast Aluminum ECU Housing: Provides superior heat dissipation and RFI/EMI shielding. The ECU case doubles as a heatsink for internal drivers, improving reliability and lifespan.
- Bosch LSU 4.9 WBO2 Sensor: Faster, more accurate readings with the latest planar sensing technology.
- Integrated Fuel Pressure Sensor: Maintains proper fuel delivery by giving you real-time pressure monitoring directly from the throttle body. No external sensors or guessing.
- Progressive Linkage: Improved throttle tip-in for smooth response and crisp drivability.
- Ported Vacuum: Supports vacuum advance on non-timing-control distributors like HEI or mechanical setups.
- Roller Bearing Throttle Shafts: Reduce friction and eliminate idle issues caused by bushing wear.
- Low-Profile Design: Works with more air cleaner setups (including drop-base filters) while fitting easily under most factory and aftermarket air cleaners.
Next-Gen ECU Power (Gen 2 Technology)
This isn't just another ECU refresh; it's a total architecture upgrade.
The Gen 2 Aces ECU delivers faster processing, deeper tables, and smarter data handling for the most precise control we've ever offered.
Core System Upgrades:
- More Memory: Expanded program space for advanced control algorithms and adaptive strategies.
- DMA-Based ADC Acquisition: Faster, cleaner, and more accurate sensor readings.
- Enhanced Interrupt Handling: Responds quicker to changing conditions for smoother performance.
- Expanded Timer Functions: Greater precision for timing-critical events.
Mapping & Sensor Enhancements:
- 31x31 VE Tables: Almost triple the resolution for stock, mild, and race modes.
- 31x31 Self-Learning Tables: Sharper adaptive fuel control across every RPM band.
- 31x31 Ignition Maps: More detail means smoother spark transitions and better power delivery.
- Fuel Level Sensor Support: Integrates with your existing or aftermarket sender.
- Boost Control-Ready Hardware: Already compatible with boost setups and prepped for PWM boost control with software activation coming Fall 2025.
- Boost Pressure Monitoring: Direct sensor acquisition for live boost tracking.
System Integration
The Killshot 2 Pro connects seamlessly with Dakota Digital clusters using the Aces BIM-01-2-ACES module (sold separately). It outputs a clean tach signal for both factory and classic-style gauges and supports systems that don't rely on CAN data.
If you're moving from a stock or aftermarket EFI that uses CAN to drive your gauges, you may need to review those connections for compatibility.
All Aces ECUs are built on 32-bit automotive-grade processors, the same specs used by OEM manufacturers, not the slower, industrial-grade 16-bit chips common in other aftermarket systems.
The system runs at 43–60 PSI fuel pressure and supports return or returnless configurations, depending on your pump. Internally regulated in-tank pumps can run returnless, while external, inline, or surge setups will need a return line.
Easy Weekend Install
For most applications, we built the Killshot 2 Pro to install in a weekend. No crew, no laptop wizardry. Bolt it on, wire it up, answer a few setup questions, and let it learn. From the first startup to full throttle, it's designed to be as straightforward as EFI gets.
When you're ready to leave the carb behind, the Killshot 2 Pro gives you everything you love about old-school performance with all the brains of modern EFI.
No compromises. No headaches. Just results.
System Specs
What's in the box?
Note: This list will not include any add-ons selected above.
Black / Bluetooth Module Only
Black / 5" Handheld
Black / 5" Handheld + Bluetooth Module
Black / 7" Handheld
Black / 7" Handheld + Bluetooth Module
Polished / Bluetooth Module Only
Polished / 5" Handheld
Polished / 5" Handheld + Bluetooth Module
Polished / 7" Handheld
Polished / 7" Handheld + Bluetooth Module
Gold / Bluetooth Module Only
Gold / 5" Handheld
Gold / 5" Handheld + Bluetooth Module
Gold / 7" Handheld
Gold / 7" Handheld + Bluetooth Module
Killshot 2 Pro EFI System
The Aces Killshot 2 Pro isn't just an upgrade, it's a statement.
Built for the driver who refuses to settle, this 4-barrel throttle body EFI system replaces your carb or outdated EFI with modern precision and raw power. Using a 4150-style flange and a recessed base, it drops right onto single or dual-plane manifolds. With support for up to 650 HP naturally aspirated and 575 HP under boost, the Killshot 2 Pro is made to feed whatever you're building: street bruiser, boosted weekend warrior, or nitrous-hungry drag car.
An integrated 3-bar TMAP sensor supports up to 27 psi of boost for turbo and supercharged applications, while four 100 lb/hr injectors comfortably feed up to 650 HP per throttle body. Need more? Run dual-quad and fuel up to 1,200 HP (requires an additional secondary throttle body unit and larger pump; both sold separately).
It's already compatible with blow-through, draw-through, and nitrous setups right out of the box. And when our boost control software update lands in Fall 2025, the hardware inside is already ready to run with PWM boost solenoid control for true precision under pressure.
Power Meets Simplicity
At Aces, we build EFI systems that make serious power simple.
The Killshot 2 Pro is a DIY-friendly system designed for enthusiasts of all skill levels. Wire it in, answer a few setup questions, fire it up, and the self-learning ECU takes over by fine-tuning your fuel maps automatically. For most street builds, that's all it takes. For the tuners who want total control, our free laptop software unlocks full manual tuning access, which is ideal for mild to aggressive builds running high-lift cams, forced induction, or nitrous.
Once your engine reaches operating temperature, the system goes closed-loop and starts learning in real time. After a few drives, your tune dials itself in, and when you're happy with it, you can disable learning and lock it down. That's confidence you can feel at every throttle blip.
Ignition Compatibility
Whether you're running an HEI, canister coil, or aftermarket system like MSD or Holley, the Killshot 2 Pro plays nice. It can also digitally control timing with a Hall-effect or mechanically locked magnetic distributor and works seamlessly with CD ignition boxes.
If you're looking to go all-in, Aces offers complete Hall-effect and magnetic distributors, ignition coils, and fuel systems designed to work together for maximum reliability and spark control.
Choose Your Setup
We know every build is different, so we made the Killshot 2 Pro modular. Build it your way and save while you do it.
- Standalone Kit: Includes the throttle body, ECU, wiring harness, and your choice of interface.
- Fuel Kit (Standalone + Fuel System): Adds a complete fuel system to your existing ignition setup.
- Top End Kit (Standalone + Distributor + Coil): Adds ignition components to your existing fuel system.
- Master Kit (Standalone + Fuel System + Distributor + Coil): Everything you need for a full carb-to-EFI conversion.
Choose any of these pre-built options and save 5% off the whole kit.
Interface Options
Choose how you want to set up and monitor your system:
- Bluetooth Module: Connects to Android (iOS support coming Fall 2025) through our free Aces Connect app.
- 5” Handheld Touchscreen: Full-color display with built-in GPS for real-time MPH.
- 7” Handheld Touchscreen: Bigger screen, same powerful features, also GPS-ready.
All three interfaces let you view RPM, speed, sensor data, live tuning metrics, and much more with customizable layouts. Bluetooth users will get GPS speed readouts with the Fall 2025 firmware update.
Engineered for Real Performance
The Killshot 2 Pro doesn't just look tough, it's built that way.
Every component is designed for precision, durability, and real-world performance.
- Remote-Mounted ECU: Unlike systems that bury electronics inside the throttle body, the Killshot 2 Pro keeps its ECU separate. This remote-mounted design protects it from heat and vibration, ensuring long-term reliability and easy serviceability.
- Cast Aluminum ECU Housing: Provides superior heat dissipation and RFI/EMI shielding. The ECU case doubles as a heatsink for internal drivers, improving reliability and lifespan.
- Bosch LSU 4.9 WBO2 Sensor: Faster, more accurate readings with the latest planar sensing technology.
- Integrated Fuel Pressure Sensor: Maintains proper fuel delivery by giving you real-time pressure monitoring directly from the throttle body. No external sensors or guessing.
- Progressive Linkage: Improved throttle tip-in for smooth response and crisp drivability.
- Ported Vacuum: Supports vacuum advance on non-timing-control distributors like HEI or mechanical setups.
- Roller Bearing Throttle Shafts: Reduce friction and eliminate idle issues caused by bushing wear.
- Low-Profile Design: Works with more air cleaner setups (including drop-base filters) while fitting easily under most factory and aftermarket air cleaners.
Next-Gen ECU Power (Gen 2 Technology)
This isn't just another ECU refresh; it's a total architecture upgrade.
The Gen 2 Aces ECU delivers faster processing, deeper tables, and smarter data handling for the most precise control we've ever offered.
Core System Upgrades:
- More Memory: Expanded program space for advanced control algorithms and adaptive strategies.
- DMA-Based ADC Acquisition: Faster, cleaner, and more accurate sensor readings.
- Enhanced Interrupt Handling: Responds quicker to changing conditions for smoother performance.
- Expanded Timer Functions: Greater precision for timing-critical events.
Mapping & Sensor Enhancements:
- 31x31 VE Tables: Almost triple the resolution for stock, mild, and race modes.
- 31x31 Self-Learning Tables: Sharper adaptive fuel control across every RPM band.
- 31x31 Ignition Maps: More detail means smoother spark transitions and better power delivery.
- Fuel Level Sensor Support: Integrates with your existing or aftermarket sender.
- Boost Control-Ready Hardware: Already compatible with boost setups and prepped for PWM boost control with software activation coming Fall 2025.
- Boost Pressure Monitoring: Direct sensor acquisition for live boost tracking.
System Integration
The Killshot 2 Pro connects seamlessly with Dakota Digital clusters using the Aces BIM-01-2-ACES module (sold separately). It outputs a clean tach signal for both factory and classic-style gauges and supports systems that don't rely on CAN data.
If you're moving from a stock or aftermarket EFI that uses CAN to drive your gauges, you may need to review those connections for compatibility.
All Aces ECUs are built on 32-bit automotive-grade processors, the same specs used by OEM manufacturers, not the slower, industrial-grade 16-bit chips common in other aftermarket systems.
The system runs at 43–60 PSI fuel pressure and supports return or returnless configurations, depending on your pump. Internally regulated in-tank pumps can run returnless, while external, inline, or surge setups will need a return line.
Easy Weekend Install
For most applications, we built the Killshot 2 Pro to install in a weekend. No crew, no laptop wizardry. Bolt it on, wire it up, answer a few setup questions, and let it learn. From the first startup to full throttle, it's designed to be as straightforward as EFI gets.
When you're ready to leave the carb behind, the Killshot 2 Pro gives you everything you love about old-school performance with all the brains of modern EFI.
No compromises. No headaches. Just results.
Note: This list will not include any add-ons selected above.
Black / Bluetooth Module Only
Black / 5" Handheld
Black / 5" Handheld + Bluetooth Module
Black / 7" Handheld
Black / 7" Handheld + Bluetooth Module
Polished / Bluetooth Module Only
Polished / 5" Handheld
Polished / 5" Handheld + Bluetooth Module
Polished / 7" Handheld
Polished / 7" Handheld + Bluetooth Module
Gold / Bluetooth Module Only
Gold / 5" Handheld
Gold / 5" Handheld + Bluetooth Module
Gold / 7" Handheld
Gold / 7" Handheld + Bluetooth Module
¹System will support up to 650 HP in naturally aspirated applications which are capable of 650 HP.
²System will support up to 1,200 HP in naturally aspirated applications which are capable of 1,200 HP and when using a Killshot II kit in conjucntion with a dedicated Secondary Killshot II throttle body.
³Secondary throttle body not included in the kit by default but is available for purchase
Looks great. I can't wait to install it.
Like the unit and am upgrading to Killshot II.
I want a refund please. How do I go about it
Aces killshot 4 bbl efi. System arrived promptly, quality appears excellent, even packaging was excellent. Tech support was great very courteous and professional, overall I am extremely pleased with the purchase and experience. Thank you very much
Installed it on our 69 mustang Mach 1, Super good quality very impressed. liked it so much I bought a blackjack distributor for the 351w, 2 high rollers and a fusion kit to go on my 67 mustang coupe with factory 390. If I Had more cars that needed them I'd buy more. Highly recommend.
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