High guys, I have these EFIE dual control units. They can be used for MAP/MAF and/or O2 sensors. Built-in plug for your volt meter to plug in. If you have a FI engine you probably wont realize any fuel savings without one of these. These units are NOT made with cheap volume control resistors but with a true variable voltage pot. Instructions and wiring diagram included with installation kit.
They sell for 89.95 plus 5.00 shipping. Money back guarantee
Email me at skipper995@optonline.net