I think the race will come down to the driver up to 100mph.
My other car is a slightly modded bare bones 99 Max SE 5spd ( jwt intake/cattman y pipe/stillen cat back exhaust/stillen stage 3 brake package/stillen frt strut tower brace/cattman rear anti roll bar) and it is a very good straight line match against a stock wrx unless the wrx launches right. I have run a couple of new max 6spds and I beat them both handily. My max weighs about 10lbs less than the wrx and with the mods is making around the same flywheel hp. The difference is really in the launch..the max will burn up the tire for as long as you hold the pedal down on a hard launch. My next mod to it will be a LSD to help out with that. If I dont do a good 4-5krpm clutch drop/roll with the wrx and just take off from idle, the max is pretty much even, just a little bit back of the wrx. If I launched right with the wrx, the max never catches up. Now that my wrx has a few tweaks, it is no contest of course.