[West Coast Suzuki]

I'm sure you have read my review on the exhaust options thread, but I'm almost embarrassed to post the a/f ratios of swapping the pipe before the Woolich dyno tune. All over the place. It took my dyno guy 2 days to reconfigure all the parameters over what Suzuki did with that insanely complicated muffler/cat/exhaust valve system they use on the 1000S(GT, GT+) models now. The CS full system option, as you stated is just not a good choice for anyone riding a GT model, and it is a little frustrating that the DB level is so hard to control while trying to tuck up under the lower fairing and clear the bags both at the same time and make good power and just enough sound to make it sound like a "runner" without attracting too much attention. We have the tune down to near perfection in both A and B mode, but wish there was a way to make it a little quieter at low rpms without having to give up power, or add some kind of exhaust valve back into the system and try to figure out how to tie it back into the servo and ECU with a full system. I just wear pinlock ear plugs and put music on thru my Sena if I am doing highway riding. That is the only brand I have found so far that don't bother my ears for all day rides and can still hear music or bike to bike communication.

 

[West Coast Suzuki]

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.

 

[West Coast Suzuki]

OK: Before Tune: 136.61 hp @10.17K rpm and 71.20 ft./lbs [email protected] 9.73K rpm - after tune with pipe 146.16 hp @11.0K rpm and 77.35 ft./lbs torque @ 9.17K rpm.
My dyno guy claims his numbers are approx. 10 hp below Dynojets "in house" Dynomometer, but they won't calibrate their machine to match. These numbers are from just the tune.He didn't put the bike on his dyno before the pipes went on and the ECU was pulled to attach the special cable for the GT's from Woolich.
Dynojet model 188R using Dynojet software.

Now to give you background, Dynojet on THEIR dyno did the same bike last summer, with the stock exhaust, at 136.25 hp @10.32K rpm and 71.89 ft/lbs torque @ 9.25K rpm.
They put a PC6 on it, which increased HP by 3+ and torque by less than 3, but the bike only felt different right off idle, as it had a little "hitch" in the powerband, which the same issue occurred with my second GT. I am not trying to do any kind of promo like the Utube guys do. I'm just trying to give some feedback.

Bottom line is I like the pipe, no regrets, and the Woolich tune is 100% necessary, as i explained how uneven the A/F ratios were before the tune.
I rode 110 miles on Saturday with my Aria Quantum X helmet. It was a little louder than I had hoped for long distance multi-day rides without my pinlock ear plugs.
Sunday I rode 250 miles with my Shoei RF-1400 helmet, no ear plugs and it was perfectly acceptable for all day comfort, at high or low speeds. So helmet choice makes a difference in how much you want to hear.- But order the Q3 baffle with the pipe.