Thanks guys!! but i was thinking of fabspeed header + power craft sports cat + ms racing muffler. not sure how would this sound , but my current ms racing does give me a very very satisfying sound ( higher pitch ) . would love to post some videos someday. Btw i had a question , will it ruined the higher pitch sound if i replace headers and sports cat . i just the way the sound now and thinking to add a little bit louder, thats about it, what do you guys reckon ? thanks!!!!