I am in the same boat you are. I have heard that the stock rods can handle up to 370-380 HP to the wheels without the possiblity of damage. I am looking into the HKS SC and ATI Procharger, both of which are supposed to be reliable HP upgrades. I hope to be doing something like this late this year or early next. I am by no means a mechanic so someone please correct me if i'm wrong.