I have a 2003 CBR 954. The only performance mod I have is an Indigo high mount half system. Don't get me wrong my bike is sick fast, under approximately 115-120 mph. As soon as I approach 130-135ish my bike seems to loose a little. I know this is normal as the bike is going faster, but how is that my friends bone stock 2002 GSXR 750 can pull me and pass me rather convincingly at those speeds. Is my bike a dud, or is honda's forte' not in top speed but faster lap times. Don't get me wrong the bike is fast enough for me being that it is my first sport bike and how fast can you really go on the street? He does however weigh 30lbs less. Could the exhaust possibly have made me loose power since I have yet to get a power commander? But if anything the exhaust should help the top end. I don't know this scenario has me frustrated especially since I was talking all kinds of trash saying he should have gotten a 1 liter. Well I guess he showed me.