no logic to what im saying? sorry if doubling the output of an engine by adding an oem turbo kit to it seems perfectly logical, must be some good crack youve got. its a pretty outrageous claim which lays the burden of proof clearing in his court. i appreciate your input but if you think that dyno proves anything please read my reply to that post. oh yeah if youve got any time slips for z31s lower than 15 seconds stock id love to see them, no professional reviewing the z31 ever came close to that, ive owned a turbo 87 and theres just no way....thanks for coming out tho