A tune from the shop, or a tuned PCM ? I can imagine ill need both lol. Im ordering a tuned PCM from Reptile later this week, and will probably have an overall tune done at the shop once i install a 3.4" pulley. But im just re-assuring myself that im not going to be ready to take my car in for the pulley swap and have to order more things for the pulley because the zzp pulley system and belt won't be enough, or will it ? Thanks.