I have no doubt that I'd be happy with the Procharger kit. Also the Whipple and Roush. I'm leaning toward ESS G2 refurb for cost reasons. Thanks for the info!
It started months ago. What's odd is that it will not do this low idle behavior for months and then all of a sudden it started up again. I didn't mention earlier, but I just replaced my battery last week. Not sure how that would cause low idle though.
I have a green filter from Steeda. I do have the https://performanceparts.ford.com/part/M-9603-M8B kit installed. I changed the original filter with the green filter I currently have. Will check the MAF sensor.
I've had this problem for a while but haven't done anything about it yet because sometimes months go by without it happening. But now, yesterday and today, it started happening again. Once the car is up to operating temperature, my car idles at 600 RPM. Now, once the car is warm, idle goes...
Looks like ESS has refurbished G2 kit for $4K and change. Then I have to pay to get it installed, the tune, and I don't know if I need injectors and fuel system. but by my calculations it would end up being close to $7000 all in.
I might have to check with Beefcake about beating the cost of the ESS. By all accounts so far the ESS seems to be cheaper, but not by that much, but perhaps enough to tilt my decision. I also have to take into account the cost of installation of the kit.