If I put a straight exhaust on with no modification to the air intake system except for under tank filter mod will the 12 min tune be enough? I really don't want to have to get into trying to tune with a program by myself... I'm not very computer savvy.
You will need a computer retune to increase the air fuel ratio. However there is an alternative that really works quit well. Get yourself a Dobeck Performance AFR Plus. Easy to install and it will adjust the air fuel ratio to what ever you want. It is perfect for a guy who isn't computer savvy but otherwise a reasonable backyard mechanic. I have it on my bike and love it. Gained 19 HP and 9 TQ with it. Dyno proven just to be sure.