opinions on best turbo timer for the money and vendors, other opinions regarding turbo timer

 

I don't have experience with any except the TST R49 with Turbo Cool Down timer, but I know that this one works great and I would be lost without it.

 

You might want to look at the ISSPRO turbo temp monitor. Looks at the temperature and not time. I bought one but only have it partially installed. The only downside I've seen so far is the wiring diagram that comes with it is generic, not model specific.

 

i've got the bd diesel cool down timer. easy install-works great.