$2k for install? GTFO these things are 4 - 6 wires hook ups, you need one hole drilled in your exhaust for o2 sensor, and fuel pump and lines. I don't think I had 8 total hours in it doing it all myself.
Yeah, that is what really raised red flags. Maybe I misunderstood the guy, but I was expecting $2-2500 all in, with a tanks inc and other small upgrades.