I have been looking at the turbo cooldown controlers and I want some users to comment on the two main ones that I have seen, the Howards and the one from Geno's there is a considerable price difference is the Howards as good?

 

I have Howard's and I dig it. The price is good, it works with many applications, the connections are easy, and it functions just as it should. I've had mine on for about 2 months now, and I use it religiously. Howard's doesn't have quite the adjustability of some of the more expensive ones, but 2-6 minutes is really all that is needed to cool the turbo down.

 

you may want to take a look at BD's (Diesel Dymanic) cool Down Timer also. It takes it's input from the pyro to cool down to a set temp and NOT a TIMER.
http://dieselperformance.com/ram/index.php