Tuning your ECU gets more done with less pieces and usually money. Would work fine in your case but def not the best answer. Now a days there is even self tuning add ons. Sure its not "recommended" but 9 times out of 10 it works fine for some one with your mods looking for what you want to do. Buy a PC, down load a map based on your mods and run it. Finding some one who tunes a PC is much easier then some one who tunes ECUs. They came out before the public realized GSXRs had tuneable ecus and before it was common and affordable. The purpose of piggy back fuel management systems is to make fuel management easy and affordable. I also agree that I wouldnt run a race filter on your set up, or lack of. DO NOT a RACE filter with out adjusting the a/f ration in what ever way you see fit. HOWEVER the one thing every one is in agreement to, the short answer to your question. 5 of which I have heard positive things about 2 I would trust. Mag I can provide a list of about 10 shops in the tristate area that can tune stock ECUs if your any near NJ. Its so popular and easy to do now that its often a fraction of the cost of going the piggy back way. Its why you see the motors in carts and buggys.
Tuneable ECUs makes the GSXR platform popular for bikers as well as other projects. Makes it sound way more "scary" and dangerous then it is.
Using "hack" leads some one who may not know, like this OP to believe its some kind of exploit that. If your going to tune your own PC you need to know what your doing. Obviously if your going to do it your self you need to know what your doing. Maam your making it sound WAY harder then it is.