Royal Flush EFI/CDI

SKU: AS2014B
Sale price$1,104.99 Regular price$1,899.99
Save 42% off MSRP!

Awesome April Promotion! This kit will come with a free:

  • Pressure Sensor Kit, Adjustable AN Wrench, and Air Filter Kit!

Valid 04/01/24 - 04/30/24
*Free items may ship at a later date due to large influxes of orders during a promotion. All other items ship at normal times.*

Step Guide

Step 1:
(Scroll down to read how they're different)

Step 2:

Color: Black


Kit Types

Your guide to understanding our kit options.

650 HP

Best suited for 200-600 HP applications, the Royal Flush 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!

Royal Flush EFI

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Viewing NowRoyal Flush EFI/CDI
Royal Flush EFI/CDI Sale price$1,104.99 Regular price$1,899.99
Injector Size

(2) 100 lb/hr

(4) 100 lb/hr

(4) 100 lb/hr

Things to know

& other FAQs.

Collapsible Product Specs Section
Product Specs
Feature Specification
CFM Rating 800 CFM
Material Cast Aluminum (throttle body)
Ported Vacuum Yes
Air Cleaner Diameter 5”
Throttle Body Height 3-5/16”
MAP Sensor Rating 3 Bar
Inlet/Outlet Size -6 AN
Injector Size 100 lb/hr
Fuel PSI Required 42-48 PSI, 60 PSI max
Compatible, yes. Control requires a separate module.
Available Finishes Black ceramic, gold, or polished
HP Rating 650 HP (naturally aspirated)