whoops....
the only mod is a manual boost controller.
stock exhaust, stock intake, even a crappy compliance spec cat and filter!
stock boost is about 8psi, and i had it set at 12psi, but it tapers off to about 10psi higher up (I need a EBC!)
the 'not much quicker' was referring to the aristo... i expected a 3L TT sedan to go more than 0.1s faster than a 2.5L TT wagon
the SS wagon was also a VY, so it was only the 5.7L LS1, i'm not sure what they are supposed to do, but i know the LS2 powered utes are supposed to do ~14 flat (my old man wants to try his against the legnum ), so a LS1 wagon doing 15 sounds about right.