im decatting mine next week with APS racing ones ive got the rest of the system fujitsubo with an oem y pipe so im hoping wont be too loud, fujitsubo is fairly quiet anyway so hopefully a bit more rumble il let you know how it goes....i to also dont get silenced and unsilenced and resonated and unresonated does that mean they have that extra little bit on decat pipe were gases go and are a bit quieter??