The older EI ultimate engine analyzer that came with my plane that I bought 7 years ago has always worked flawlessly.
VI-2µFA SureFly Ignition Interface
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Product Overview
Connection to E.I. Instrument Instructions
VI-2µFA SureFly Interface

EDC-33 Bottom Connector (MVP & CGR)
SureFly replacing the Left MAG

EDC-33 Bottom Connector (MVP & CGR)
SureFly replacing the Right MAG

R-1 Circular Connector

Prices
Retail Prices
Included:
- E.I. VI-2µFA SureFly Interface
- 15 Blue 20ga Ferrules
- 5 OLC-2 Connectors
- 0.05″ Hex Wrench
- VI-2µFA Connection Instructions
- E.I. Wire Connections Guide
Description
Package
Retail Price
VI-2µFA SureFly Interface
VI-2uFA
$48
VI-2µFA SureFly Interface with Wire Connector Package
VI-2uFA-WCP
$128
Two VI-2µFA SureFly Interface (for Twin Engines)
VI-2uFA-2
$96
Two VI-2µFA SureFly Interface (for Twin Engines) with Wire Connector Package
VI-2uFA-2-WCP
$180
Lead Time: Usually ships within 2–3 business days.

Additional Option:
Option Includes:
- Crimper
- 80 Ferrules (20 ga)
- 80 Ferrules (24 ga)
- 40 OLC-2 Connectors
- Hex Wrench
- Wiring Guide

Specifications
Videos
Documents
Documents & Manuals
Testimonials
Customer Testimonials
The reviews online were very good. Customer service has been great.
After enquiring through (one of) your dealers and calling EI directly it was clear that you provided good customer service and would likely not drop the ball on tech support, and so far I have been right.
Your products always work great! Great customer service and a quality product that we have used for years.
- Customer
Brenton C. from Tennessee
- Aircraft
Cessna 172M
- EI Instrument
Your customer support is far superior . . . . I appreciate all your help.
Great service for Electronics International. Very helpful with what it needed for my aircraft. My mechanic has installed several of these units and highly recommended this for my aircraft.
Every person was willing to help me when I needed and the whole purchasing process was smooth. [And, E.I.] was recommended by my mechanic.
Great customer service!
Excellent Service, superb product.
- Customer
Steven N. from Colorado
- Aircraft
Cessna 182E Skylane
- EI Instrument
The tach looks and operates amazing. Extremely accurate.
Great Service.
- Customer
Flying Academy from New York
- Aircraft
Piper PA-28-161 Warrior
- EI Instrument
Straight up install no issues. Works as advertised!
- Customer
John L. from Georgia
- Aircraft
Piper PA-28-151 Cherokee Warrior
- EI Instrument