Just as the topic states. How much work needs to be done to make the new GTs attain 500 HP? Now, I'm just talking about bolt-ons, not a complete engine rebuild. For example, would a procharger setup be able to boost the GTs numbers to 500HP?
It's not that hard
^^^haha, so you think that it MAY blow raising the boost to make well over 500rwhp? Ha, hope you have some money saved up for that bottom end.
http://www.fordracingparts.com/parts/part_details.asp?PartKeyField=9765
Ford Racing has this on a few of their Mustangs and have had no problems.