he reckons that the amal valve makes the boost drop off to much thats why he said get a boost controller as that wont happen. surely when i get my rs500 cooler and put that on it can be tuned to what its suppose to run, without getting air injectors and boost controllers, ive got all this stage 3 stuff on my car and he has basically got my car running less power than a stage one setup. its 250bhp............ crapppppppppppppppp is the word, thinking about it, ive been butt fooked big time.