Im not ready to upgrade to the GT Pumps just yet so I would like to purchase 03/04 Fuel pumps to replace my high mileage fuel pumps that are currently in the car since I do believe this is the reason why the pumps are maxed out at 6300 rpms at only 450 HP. Must be in very good working order, clean filters etc... please PM me with a price with the miles on your pumps thanks.