actually thats not a valid point because his company also uses the machinery to make products for sale to the public so its not like he bought it just to build his personal stuff only. and the dyno' primary purpose is'nt for tuning his car, he also tunes customer cars as well its not like the dyno is only for the purpose of tuning the race cars, so the dyno and cam grinding/cnc machinery shouldnt even count as cost towards the insight.