im looking into getting some new headers for my 89' Firebird Formula LO3 V8 5.0L ( 305) TBI. Right now i have flowmaster exhaust and I really want some more sound ( i want people to hear me comming) and some more power in there too. What are some of the best priced one's that I could get some nice sound out of. Also im wondering how much this would cost to have them installed, because I still can't do to much myself. Thanks again