I'm in early stages of modding my 99 GTP and plan on eventually working my way up to a 3.4" pulley. The question i have is when i get a tuned PCM, should i do it after i get the pulley so its set up for it, or before hand? Either way i plan on getting both within a week of eachother, but i don't wanna screw something up by putting on the pulley first, or pay for a retune by getting the PCM first.