did you hear it start? Definetly not a liter bike, way to high pitched...I was in the rocket scene for awhile and had a bunch of friends with GSX-R's and thats definetly not bigger then a 6. Even if it was a liter it wouldn't pull over mid 170's with stock gears, and no one gears down for more top speed, so unless your on a UNgoverend GSXR-1300 or ZX-14 then you dont hit 200+ (unless your bike is built, dropped, stretched, and on a bottle. With a M4 Pipe that thing is nothing special)