Killshot EFI System

SKU: AS2012B
Sale price$815.99 Regular price$1,199.99
Save 32% off MSRP!
Combined Code Block

Includes the following free items!*

*Pro dash only for the versions with the Quick Draw TCM

Throttle Body Finish: Killshot™ (Black)

Throttle Body Finish

Handheld/Dash: 5" Handheld

Handheld/Dash

Trans Control: No Trans Control

Trans Control

Aces' Killshot EFI system is one of the most advanced throttle body injection (TBI) systems on the market. The Killshot utilizes four 100 lb/hr fuel injectors, giving the system the capability of supporting up to 650 horsepower. The system includes the throttle body (with integrated fuel injectors, TPS sensor, MAP sensor, IAT sensor, and stepper motors), wiring harness, WBO2 sensor, ECU, and a 5” touchscreen handheld programmer for easy tuning and monitoring of engine data. 

The Killshot system fits most 4150-flange 4-barrel intake manifolds and is designed for easy installation and tuning. For stock to mild applications, the calibration wizard and self-learning features mean advanced tuning knowledge or experience is not required. But for more aggressive or performance oriented applications, Aces offers a full tuning software suite and USB data cable for advanced manual tuning.

Aces designed its throttle body systems with the ECU separate from the throttle body. This alleviates any issues with possible damage to the ECU from unwanted engine heat or vibration. This is a common problem with other “all-in-one” style systems on the market.

Whether you are building a budget beater or a boosted racing car, Aces EFI’s Killshot system has the technology and advanced features you need, in an easy-to-install, easy-to-tune package so you can take your ride to the next level!

For timing control, the Killshot requires a magnetic pickup or hall effects distributor and separate ignition coil. We recommend our Black Jack Pro series distributor and ignition coil for a plug & play experience.

Aces EFI Killshot™ TBI System Features

  • 32-bit software (OEM standard) that manages input/output signals, voltage, and RPM faster and more consistently than competitors
  • 5” full-color touchscreen handheld with built-in GPS speedometer
  • Integrated coil driver for ignition timing control
  • Simple calibration wizard for initial setup- no laptop tuning required.
  • Self-learning fuel table
  • Dual fan control
  • Step retard for nitrous control
  • Boost compatibility (using laptop software)
  • Remote-mounted ECU to avoid common heat/vibration-induced hardware failures
  • 3-bar TMAP sensor for boost & nitrous compatible (using laptop software)
  • Free laptop software available for pro applications
  • Compatible with Aces’ handhelds, dashes, CAN modules, and TCMs.
  • Bosch 4.9 WBO2 sensor
  • (4) 100 lb/hr injectors

Kit Types

Your guide to understanding our kit options.

650 HP

Best suited for 200-600 HP applications, the Killshot can support up to 650 HP* enabling your engine to reach its fullest potential.

*Naturally aspirated

If the Shoe (throttle body) Fits..

The Killshot system was designed with a 4150 style flange making it an exact fit for the majority of small and big block applications. If your manifold is different, you can simply use a flange adaptor to make it work. The system is generally compatible with stock ignition, but to take advantage of timing control features that the system offers, you'll want to use a magnetic pickup distributor and separate ignition coil- both of which are included in our Top End and Master Kits!

Computing Power

A robust remote-mounted ECU that utilizes our OEM standard 32-bit architecture. This allows the system to manage input/output signals, voltage, and RPM faster and more consistently than our competitors. A remote-mounted ECU allows it to avoid dreaded heat-and-vibration induced hardware failures that are prevelant in other aftermarket systems.

Plug 'n' Play

Not a tuning wiz? You don't need to be since we provide a wizard for you. Our self-learning* functionality means you only have to answer a few basic questions in the startup wizard and then the ECU takes care of the rest. After about 30-60 mins of idling and drive time, the system will build it's own tune so you don't have to. Click here to learn more about our handhelds and dashes and see all of their features.

*Self-learn works best for stock-mild applications. For more aggressive applications and even some stock-mild applications, we offer free tuning software on our website.

Boost it, baby!

Each TBI unit comes with a built in 3 bar MAP sensor that will allow you to run up to 27lbs of boost!

Compare Aces EFI TBI Systems

See how our 2-bbl and 4-bbl systems compare to each outer and the advantages of each.

Deuces Wild 2-bbl EFI
Deuces Wild 2-bbl EFI Sale price$800.99 Regular price$1,099.99
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Killshot EFI System Sale priceFrom $815.99 Regular price$1,199.99
Royal Flush EFI/CDI
Royal Flush EFI/CDI Sale price$1,169.99 Regular price$1,899.99
Injector Size

(2) 100 lb/hr

(4) 100 lb/hr

(4) 100 lb/hr

Compare Aces EFI vs. Other TBI Systems

Aces Killshot

Holley Sniper 2

FiTech GoEFI600

ECU Housing

External, automotive-grade, die-cast aluminum.

ECU is mounted on the throttle body.

ECU is mounted on the throttle body.

MCU

32-bit, ST56 series Power Architecture™ (OEM Standard)

16-bit

16-bit

Handheld

5", full-color, capacitive touch screen. Includes built-in GPS chip for speedometer.

3.5" resistive touch screen

3.5" screen

Appearance

Only one connector to throttle body (bundled).

Several separated cables & wires

Several separated cables & wires

Injectors

(4) 100 lb/hr injectors

(4) 100 lb/hr injectors

(4) 100 lb/hr injectors

HP

650 HP N/A

650 HP N/A

600 HP N/A

Timing Control & IGBT Driver

Has timing control features and an integrated IGBT driver

Has timing control but no IGBT driver

-

Spark Energy

Programmable dwell time. Min. of 90 MJ spark energy when using our AC2008 ignition coil.

-

-

Retail Price

$959.99

$1,299.95

$999.99

Aces Killshot

ECU Housing

External, automotive-grade, die-cast aluminum.

MCU

32-bit, ST56 series Power Architecture™ (OEM Standard)

Handheld

5", full-color, capacitive touch screen. Includes built-in GPS chip for speedometer.

Appearance

Only one connector to throttle body (bundled).

Injectors

(4) 100 lb/hr injectors

HP

650 HP N/A

Timing Control & IGBT Driver

Has timing control features and an integrated IGBT driver

Spark Energy

Programmable dwell time. Min. of 90 MJ spark energy when using our AC2008 ignition coil.

Retail Price

$959.99

Holley Sniper 2

ECU Housing

ECU is mounted on the throttle body.

MCU

16-bit

Handheld

3.5" resistive touch screen

Appearance

Several separated cables & wires

Injectors

(4) 100 lb/hr injectors

HP

650 HP N/A

Timing Control & IGBT Driver

Has timing control but no IGBT driver

Spark Energy

-

Retail Price

$1,299.95

FiTech GoEFI600

ECU Housing

ECU is mounted on the throttle body.

MCU

16-bit

Handheld

3.5" screen

Appearance

Several separated cables & wires

Injectors

(4) 100 lb/hr injectors

HP

600 HP N/A

Timing Control & IGBT Driver

-

Spark Energy

-

Retail Price

$999.99

Product Specs

CFM Rating

800 CFM

Material

Cast Aluminum (throttle body)

Ported Vacuum

Yes

Measurements

(Shown in inches)

What's in the box?

Free items are not shown in this list since promotions vary from time to time. Some items in the kit may be replaced with an upgraded version during a promotion.

A physical manual does NOT come with each system but can be sent for free upon request. A digital manual can be found by visiting our downloads page.

4-bbl Throttle Body

x1

Killshot ECU

x1

5" Handheld

x1

Main Harness

x1

Sub-harness

x1

4.9 WBO2 Sensor

x1

Coolant Temp Sensor

x1

Harness Grommet

x1

Additional Harware

x1 of each

USB Adapter

x1 of each

Things to know

& other FAQs.