This started happening 2 days ago..
        
 
         The engine seems like it decelerates faster when I let off the throttle. I know it isn't the wheels or brakes decelerating it because when I pull the clutch in the bike rolls really well..
        
 The bike makes more noise. Like its pulling uphill all the time.
        
 It also vibrates a LOT more than before, at anything over 2000 rpm..
        
 The only mod that the bike has are a set of akrapovic sp cans, and no catalytic converters.
        
 Before it didn't do these things. 
        
 Precisely 1 week ago I had the oil changed on the bike... 14000km
        
 Anyone know what the problem might be? KEV? 
        
