i had already done the remove the air silencer,maf screen and k&n thing but, i read about how c&l alters the sampling tube to change the a/f ratio from 11.8 to 12.6 for more power and it sold me. the car has better throttle response throughout the entire rpm range, sounds meaner and the butt dyno tells me this thing works. c&l claims 14rwhp on a stock '94 auto. cheap HP for the money. HTH