Product images and videos are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

Air and Fuel› Fuel Injection Systems and Components - Electronic

Ace

Killshot 2 Pro EFI System

Name: Killshot 2 Pro EFI System
Brand: Ace
SKU: AS2212P-B-BT

$766.32

SKU: AS2212P-B-BT

Free Shipping over $200

$100 Minimum Order

Non-Returnable Item

DIY PRO SHOP

Moderate — 2–4 hours

Overview

The Ace Killshot 2 Pro EFI System is a throttle body injection unit designed for classic 4, 6, or 8-cylinder engines. It features a 4150-style flange for easy installation on single or dual-plane manifolds. This system supports up to 650 horsepower naturally aspirated and 550 horsepower with forced induction.

Show original supplier description

The Ace Killshot 2 Pro EFI System is a throttle body injection unit designed for classic 4, 6, or 8-cylinder engines. It features a 4150-style flange and a recessed base, allowing it to drop right onto single or dual-plane manifolds. This system supports up to 650 horsepower naturally aspirated and 550 horsepower with forced induction, with a recommended fuel pressure range of 43-58 PSI. This system includes the throttle body, ECU, a Bluetooth module for control and tuning via a smartphone or tablet, a full harness, and various sensors. It boasts a self-learning capability for fuel maps, making it ideal for stock to mild engine builds, with the option for advanced manual tuning via a free PC app. The throttle body itself is constructed from cast aluminum and features a 1,000 CFM rating. Key features of the Killshot 2 Pro include its lower profile design for better air cleaner fitment, a built-in fuel pressure sensor, progressive linkage, and support for boost control (up to 26 lbs), E85 fuel (with proper tuning), and ignition timing control. It also offers advanced capabilities like datalogging, EGT support, and fan control. For optimal performance, a fuel system rated for EFI is required, and if timing control is desired, a magnetic or Hall Effect distributor is necessary.

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

Fitment

Fitment Guaranteed

Don’t gamble
on fit.

Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

Available on iOS & Android

Specifications

Brand	Ace
Part Number	AS2212P-B-BT
Category	Air and Fuel

Videos

ACES Fuel Injection | Killshot Installation | 1987 Chevy Silverado

Killshot II Installation Guide

Aces Killshot EFI Update and Product Review

Killshot Fusion Installation Guide

Aces EFI Killshot unboxing. Better than the Holley Sniper 2?!

Aces EFI KillShot Install | 1986 F150 | SBF 302 | Manual Transmission

First Look: No Relays, Less Wiring, Less Fuses- Aces EFI PDM | Aces Fuel Injection Wiring |

Killshot 2 Pro: Fuel Level Monitoring Made Simple

Aces EFI Install Part 2! Will The Mustang Run??

Aces Killshot EFI First Start.. 69 Dodge Dart, 318 w/ Mild Comp Cam

5,000+ Trusted brands

1M+ Enthusiasts

5M+ Parts sold

(760) 282-4645 hello@motormia.co

Buy with Confidence

Returns & Fitment

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

View Full Return Policy

Shipping

Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.

Free shipping over $200 in the continental US. Alaska, Hawaii, U.S. territories (Puerto Rico, U.S. Virgin Islands, Guam, American Samoa, and the Northern Mariana Islands), and international orders carry surcharges — most appear at checkout. Some exceptions (LTL freight, or suppliers who quote freight only after we place the order) won’t. In those cases we’ll reach out with the exact charge before your order moves forward.

View Full Shipping Policy