Johnrg
Husqvarna
Pro Class
The autotune involves welding/replacing the 12mm for a 18mm bung on your header. Not sure if I read it on the forum elsewhere but with the pcv and the 4 hole injector you may be good and not need the 12 and autotune (since you have maps that work and simple enough to plug in and adjust a few cells). Would save you a bit of cash. The autotune is pretty cool though and since the plug is such a pia to pull and read makes "jetting" easy. Get a simple map switch also so you can run two maps.