I run a MADS Smarty Jr, and love it. Easy to install, user interface is simple and it has 3 easy settings. 30-70-100hp tunes. Search for Smarty Jr on here. Tons of reviews and info to be found. And its relatively safe. No worries of destroying parts with a SJR. I run on SW3-Tq2 all the time and havent had any problems yet. Pulls like a raped ape. =)