Just my opinion...But I dont really think hes looking to spend that much money. just by the way he asked doesnt seemthat way. Why should he go for Forged pistons for $280-300whp? Vitara pistons have proven to goto 400whp. and are $150. on stock bore. You got alot of money listed up there for a D series build..lol..Mannley rods??? damn thats some money man.