OK..ive done searches, but i have a 97 infiniti I30 and i got a cattman Y pipe and Cattman cold air intake. I want a catback system, which brand gives the deepest and loudest sound i can get. I dont want it to sound too ricey though. Im leaning toward the greedy Sp cattback system, thats the only greddy that will fit my car. Is a stillen exhaut or HKS better?

 

You already posted this. STOP newbies....

 

Isn't this the third exhaust thread you're created today? I know you say you've searched, but if you actually apply some effort in searching you would find hundreds of these threads which would answer all of your exhaust questions.