u/Scamscam2005

I have a 05 gsxr 600 that was running fine 2 days ago and now all of a sudden yesterday it hit a wall at 8k RPM full throttle every gear, after it warmed up more hit a wall at 10.5k RPM eventually let me redline it for 2 pulls then went back to hitting a wall. Replaced the spark plugs this morning and have a air filter coming in but when I went to run it for a test ride it started to bog in gear, I open throttle it goes then bogs then smooths back out, defiantly can feel power loss, any help is appreciated