I have the greddy evo and recently my exhuast has been extended 3" after hitting a man hole (don't ask how, but it happen ). My mechanic managed to bent the b pipe to fit it to the hanger. I think my exhaust sound louder now but I am not sure coz I just put on an CAI. My question is, should the exhaust air make an impluse tone??? and should the CAI make the exhaust sound louder? How would this affect the performace??