:?: This is my first post since ordering my '06 black prem. GT vert. and joining the forum. BTW great info and tips which are really useful for someone like me! Anyone know the outside (outlet) diameter for the exhaust pipes on the '06 GT? I'm thinking of ordering some mods and other stuff to keep from going crazy while waiting and thought I'd checkout some exhaust tips. Also, what length looks good without being too long? Thanks for your help!