Order Status & Returns
Gift Cards
Help Center
1-800-345-4545
Vehicle Info NeededECI System For 4150 Style Carburetors
Ships on 09/11/2026
Lowest Price Guarantee- Electronic Carburetor Injection (ECI) System
- For 4150 Style Carburetors
- Includes 1-in. Aluminum Spacer Plate w/Fuel Injector Rail, Wideband O2 Sensor, Weld-in O2 Sensor Bung, Weatherproof ECU, Wiring Harness, Hardware
Note: K&N's 20-0001 ECI System is not legal for sale or use on any pollution controlled motor vehicle in California or states adopting California emission standards.
Eliminate Lean Fuel Supply Issues
Cold start, mid-range hesitation, and elevation & temperature change issues are a thing of the past with K&N's new Electronic Carburetor Injection (ECI) Systems! For a fraction of the cost of switching your carbureted setup over to an aftermarket EFI, you can install a K&N ECI in only a few hours. The ECI system easily bolts on as a supplemental fuel source, and is self-tuning, after setting five easy parameters on your laptop.
Show More
Works With Your Carburetor
The ECI works in conjunction with the carb and when it detects a lean condition, the unit automatically kicks on to supplement the fuel being supplied by the carburetor. This allows high HP engines to run efficiently, making the ECI perfect for classic muscle, drag racing, marine applications, as well as crate engines.
The ECI comes complete with an anodized aluminum 1-in. spacer plate (with fuel injector rail), wideband O2 sensor, weld-in O2 sensor bung, weatherproof ECU, wiring harness (with a provision for a second injector), and mounting hardware.
Features:
- Constantly Reads & Monitors the Air/Fuel Ratio
- Easy to Install
- Affordable
- Easy Cold Starts
- Easy Tuning
- Prevents Lean Issues
- Automatically Adjusts
- Compatible with All Fuel Types (Including Nitrous)
- Programmable
- Supplements Existing Carb Setup
Note: K&N ECI Systems are not legal for sale or use on any pollution controlled motor vehicle in California or states adopting California emission standards.
Items You Need
