theres a pretty big discussion about it at: http://www.sr20-forum.com/tuning/24693-whats-wrong-nistune.html
but basicly you cant just swap between bins like you can with calum.. you either have to buy this chip reprogrammer thing or send it in an have the bin changed.. Nistune runs off ent files.. now you can load those as you want.. those are basicly just fuel/timing/vq maps an such.. and matt will usualy convert the file for you..
IMO the Calum RTV2 has some advantages on nistune.. but good luck gettin one! and i think in time nistune will expand just like calum..
but basicly you cant just swap between bins like you can with calum.. you either have to buy this chip reprogrammer thing or send it in an have the bin changed.. Nistune runs off ent files.. now you can load those as you want.. those are basicly just fuel/timing/vq maps an such.. and matt will usualy convert the file for you..
IMO the Calum RTV2 has some advantages on nistune.. but good luck gettin one! and i think in time nistune will expand just like calum..