this system is pretty good. as in reliability, i still have to see. i am actually in the middle of installing mine. all i need left is an a/c belt. i bought this system off of someone w/ 528 auto. the car pulls pretty hard. i was impressed. I am interested in buying an ESSsupercharger.The specs are 6 p.s.i. 300plus h.p. w/ no engine lubrication.Is this a good piece of hardware?And is the p.s.i decent.I really don't know much to do about this.TIA