If both of you can drive your cars and his is broken in, here's my prediction.
SRT-4 (stock tires)
13.8 at 102mph
WRX (if ONLY up-pipe and downpipe)
13.7 at 96mph
If he(SRT-4) can cut his 60ft. down to a 2.0 or better with the right tire, I'd say mid 13s.
You on the other hand should have an aftermarket boost controller by now .