Completely bone stock they were pretty similar in performance IF you weren't loaded down with extra stuff. Driver weights will play a role in this too. Anyway, for the most part there is no picking a clear winner as they are too close.
If he's raised the boost or had any kind of mods then you're probably gonna loose.
Former owner of '99 CSVT - Silver #222/2760
356/334 wHP/TQ at 10psi on pump gas!
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'05 Volvo S40 Turbo 5 AWD with 6spd, Passion Red
'06 Mazda5 Touring, 5spd,MTX, Black