yeah it is a diablo sport tuner that was used so im assuming it would be best to get a custom tune done on it period then and does the mafia come with a guide to help the guy tuning understand what he needs to do??

does it have to be tuned by cmr or can other software do the job to??? And is the mafia right for my app i have a 99 lighting running 15# boost i put it on the dyno and made 400rwhp and 520tq it has preditor tune on it on the dyno it said the AF ratio was hitting 14-1 at 5200rpm i didnt get to hook ...

so without correct dyno tuning you will run lean but when set properly it will fix my lean condition im having??? i have a 99 lightning running approx 15-16# boost single blade tb cold air kit msd ignition diablo preditor tune and on the dyno it started going lean at about 4200rpm af ratio was ...

ok well maybe you guys can make this a little more clear i have a 99 lightning with a preditor tuner i just orderd the mafia havent got it yet but any suggestions on how to set it up in my tuner i have a maf cure but it only adjusts 10% either direction i get the injector slopes but not the maf ...