It's a naturally aspirated V6. I would expect to see around 6-8 WHP and 5-6 WTQ at the most with a real cold air intake. If it takes 115 HP to drop a little over a second and a half off of the SRT-6 sixty foot (vesus the standard Crossfire), then it would take rougly 70-80 horsepower to drop nearly a second off.

Even the SRT-4's with 100 Octane and their Stage 2 kits, can just barely hang with any automatic Z06.