The other day I installed a Yosh Zyclone RS3 Slip-on on my 2000 GSX-R600 and it was fine. Yesterday I also added a K&N replacement filter. After installing the filter, when I accelerate hard, I feel a hesitation between 4K and 6K. Is this normal for this setup, or do I need to adjust my cards or something? I was told that I did not have to rejett. Please Help!