I just ordered a B&B exhaust with Roe Cats for my 02 GTS. I was thinking about getting headers as well but have a question for you guys who are more versed than me. I know that from 96-99 the Viper had forged pistons and a better cam. 2000 and newer have cast pistons and a different cam. Did the cam and pistons from the 96-99 produce more HP than the 2000 to present? And if so, how did Dodge make up the didderence if both cars are rated at 450hp? I keep seeing on here guys who have 96-99's changing headers and getting around 35hp, whereas 2000 and newer can expect to get about half that from changing the headers. Did Dodge make up the difference(if their is one) by putting less restrictive headers on the newer engines? I just can't see dropping around two grand for a maybe 15hp gain. And in case anyone saw my 547 or 547R post, I ordered the 547R in Chrome due in around 6 to 8 weeks.