I have notice that mine pulls all the way up to 6200 rpm in 1st, 2nd and 3rd. 4th I think it runs outa puff just before rev limit and 5th just goes to 112 and stays there (on a flat). Im thinking the extra 1krpm would be beneficial for a decent 0-60 time. This is because (if anyone has noticed in an N/A) in second power doesn't really kick in until (I dont have a tacho) 35mph but 1st stops at 28mph, the extra rpm would put the revs into a decent power band before shifting.