Has anyone played with these, if so what size cooler is best to run and do you need to run a thermostat or just use a sandwich plate.

Regards
Nic

 

I use an oilstat (thermostat to bypass the cooler when the oil is cold) to avoid over chilling and slow warm up. This bit is important to me as I want the power now, not in twenty mins when it's warm. I use a 13 row cooler. This is on a twin turbo legacy tho, not an impreza.