http://www.bmrfabrication.com/ProjectGTO.wmv
GTO Modifications: Engine is stock as far as internal engine mods are concerned:
BMR Subframe Connectors, BMR Rear Swaybar, BMR Heavy Duty Driveshaft and Safety Loop, BMR Lightweight Skidplate, BMR Strut Tower Brace, Custom modified QA1 shocks, Vigilante 2600 stall converter, BFG Drag Radials, Custom NX 150hp nitrous kit, Meziere electric water pump, LS1 Speed CAI
BTW: Stock factory exhaust system.