An exhaust system bolts on to an engine. Its not designed into it. Same story with the clutch. Also, if this was true, how did this new, budget priced gsxs end up with traction control that is not available on any gsxr? This model has far more sophisticated electronics than a 07-08 gsxr. We wont even mention the abs version.
You lost credibility when you thought a simple 3 mode electronic system was more sophisticated than one with traction control and abs.
If you rode an 05 and compared it to a 07-08 or 09-2014 gsxr 1000, you'd notice the low- midrange advantage of the 05. A 30 second google search will show this as well.
The 05 was not as good for the race teams that needed 200 plus hp, but way better for the street.
Also, the latest, 09-15 gsxr 1000 uses a cable clutch, so they could have used that base engine right? Why not? It has the 4 into 1 pipe and cable clutch that is the deal breaker?
Where did I say the 3 mode selector was more sophisticated than TC and ABS? The GSXS has TC and ABS because it's simply a sign of the times. Most big cc bikes come standard with that now. Suzuki had to offer those goodies to compete with the field.
The power of a race team matters why? I'm a licensed road racer with WERA since '94. Does that matter? You say the 05 was 'way' better for the street...why?, because of 2 ft/lbs of torque that no human would be able to feel? Not even the most sophisticated butt-dyno could pick up on that.
The GSXS has what, maybe 140 hp. The 05 made 155-160 actual rear wheel hp, bone stock. So the 05 motor has been detuned for streetability. Great. Fantastic. Suzuki would have done that with the 07-15 motors too.
The 2 ft/lbs difference in torque between the 05/06 and 07/08 cannot be felt by a butt dyno. Maybe, maybe on a graph a difference can be seen, back then, 10 yrs ago, with less sophisticated dynos.
Suzuki didn't use the 09-15 engine because it is muuch more high strung than the 05-08 and is not what they were looking for in their new comfy street sled. Theres 3000 rpm difference between the 05 and 15.
I don't know all the engineering details of the internals of the engines. I can only surmise that Suzuki felt that the great , less hp'd, but torquey 05 motor, with single exhaust, no added electronics, a simple cable clutch set up, made more economical sense to put into the GSXS in order to keep the price down for the consumers and compete in the market. Did I say the 05 was a great motor? It was simply, more simple than the next 10yrs worth of GSXR 1000 motors.