MY02, Is there anyone in the Northern Indiana, Ohio or Southern MI that specialize in tuning these motors? Sorry for getting off topic.

 

To the OP, get a TP instead of HFC and maybe a single exhaust like HKS Hi Power (single helps make more power than dual) or the Tanabe Medallion dual like others recommended as its really good for the money and not rowdy like a Q300. Those two with a Flashpro tune and you will see some good gains and get a really good tone (that is obviously subjective to what you think is a good exhaust tone). The stock header is finely tuned to make power so keep it.