01-09-2011, 05:04 PM
zx6rr is taller geared and shifts better,636 feels like it has a bit more idle pull,03-04 636/03 zx6rr share ECUs and harness,while the 04 zx6rr has dual stage injection and has a diff. ECU/harness....the 636 is way better IMO for stunting,not to say you cant stunt the zx6rr cuz i did...

