My friend has a 2001 lude with and aem intake and just finished a zex 55shot nos system. He tried it out and didn't get the expected boost. The difference was so minor he's already considering returning it. Any ideas as to why the system isnt working? I figure the nozzles may be misplaced or the line kinked somewhere below the car or air in the hose. He has only run it once and is afraid to again. Any suggestions?