I think hes ^ right about the standalones but I would not tune a ecu myself, any more any how. I used to tune my honda but it's just so damn sketchy with out the proper tools and experience. Every time I drove the thing I felt like I should mess with the map some more. when I payed someone to do it with experience I felt I got the best I could have and that was that. so is it easy, not for me.