Update: Rode both GT's today for 110 mile fast jaunt. M4 full systems, Woolich flash tuned (mine 22 came out just slightly different than the 23). First time out on my 22, as I had the bottom end cleaned up just a hair leaner, and had the mid-rpm 6-7000 rpm smoothed out just a little bit because I was determined to keep the Q3 baffle in full time, while the 23 will have it in and out, and didn't have the Q3 at the time of the flash. Worked out perfectly. Both bikes were absolutely brilliant. As we put the miles on them, the Q3 baffle was absolutely tolerable, no need for earplugs. The power was spot on from idle to redline. Smooth, fast (significantly faster acceleration than stock), especially in 5th and 6th gear on corner exit and passing cars. Much more like the GSXR. And the bonus to it all was the handling without the extra weight of the can on the bottom made for significantly improved corner speeds. Now this opinion and observation was mutually agreed upon by my woman who rode the Blue 23 (which finally has just over 1000 miles on it, but she wants to run without the baffle tomorrow), and my Black 22, which has 8500 miles on it and she kept up with me pretty good, riding at about 80% of track speed. So if you want a full system that is "reasonably priced", fits perfectly, easy to install, and has some pretty good base tunes already made for it (I highly recommend having your individual bike dyno tuned to your personal preference, since the Woolich tune stuff has so many options to choose from), and for these bikes, max hp is not what you are looking for, it is rideability and in what range you do most of your riding in. Other than switching 190/55 profile tires in the future, I think I am set.
Black 22 GT+ M4 full exhaust with Q3 baffle, Woolich flash tune with Dyno, Evotech Tail Tidy, Garmin GPS (removed currently, but easy to remount for install with 2 handlebar mounts), Michelin Road 5 GT tires, EBC HH front brake pads.
Blue 23 GT+ M4 full exhaust without Q3 baffle, Woolich flash tune with Dyno, Evotech Tail Tidy. PS: stock brembo front brake pads are great on the 23, horrible on the 22 (very strange, but maybe Suzuki follows our forum, and listened to the compliants?)
23 Black GSXR1000R M4 full exhaust (carbon fiber can and titanium midpipe, Q7 insert), BMC Air filter, Flashtune brand tuning device, with dyno tune, Graves Fender eliminator kit, factory rear seat cowl, Vortex adjustable rear sets, Helibars, Michelin Road 5 tires (stock tires had cords showing at 1600 miles and wanted something more durable, and some wet weather protection), removed exhaust valve servo and all hardware.