all blowers are cool...even this kind (see attach) They add a ton of H.P. w/o giving up drivability. I don't know how much more power I have but it feels like a lot. If you mash it the tires explode instantly. I don't have a new et w/ the unit but that will be solved tomorrow (9/25) I'll let everybody know. I hope nothing brakes. I'll probably never go back to naturally asperated again. I'm already thinking about a Blk on Blk 68 Charger w/ a stroked 440 and 12-14lbs of cooled boost. Y'all have fun.