I just picked up my SCT X3 handheld with a custom tune from Jon Lund and installed about an hour ago. First impression...only drove about 15 minutes to go pick up a case of beer so not a lot of time behind the wheel but all the little bugs with the stock tune are gone. No more bog from a start, no more higher rpm hesitation, idles perfect, and feels like I may have gained a couple ponies.:dancenana: For the longest time I told myself I would not go crazy with mods but after some reading and seeing how everyone raved about a tune I decided to do it...glad I did. NOW I am done with the mods.;-)