hey guys i have question~ i have 2003 TL-S and i got my Apexi WSII like week ago and i was just wonder when the rpm goes up my CAi sounds louder than exhuast. is that suppose to be like that? i mean when im driving slow my exhaust sounds kinda deep high but soon as rpm goes up like 4000 i dont hear any exhaust sound..

Other question. i need to take out my audio system but i dunno how can anyone tell me how to do it?...