bro, i'm using satria neo cps manual...
previously, i installed a catback system (1 bullet, s-flow muffler, about 2.0" piping) and use it with my stock extractor....the sound produced is really nice and bassy...
but right after i changed my stock extractor to 4-1 from hotbits, the nice sound gone already...it became really loud and buzzing too (like ahbeng's)...
can u suggest me anything i can do to make the buzzing sound go away?? and perhaps minimize the loudness too...really need help~

This post has been edited by responsibleroy: May 14 2011, 03:45 AM