I have a 2006 GSXR1000 and it comes standard with a 4 into 1 exhaust, 175 HP and weighs 440 pounds. The 2009 is heavier due to the dual exhaust. Dump the duals for a 4 into 1 exhaust and it will be lighter than the 2006 and have 15 more HP. Frankly, my 2006 is a scary bike to ride and I can only imagine what the 2009 will be like. Its probably way too much for the street.