Ya they're nice, so is the PPE, i've had the PPE cooler before on a LLY. They work great when you're in motion, but with racing, you need something to cool down after your run, when you're back in the pits or on the return lane when hotlapping, need to cool down for the next run. I need a cooler in my bed with a fan, and would really like to get rid of the cooler up front and heat exchanger. Maybe i'll just have to run a bigass hydraulic cooler and call it good lol