along with big power comes broken parts. i blew my transmission without any power adder at only 40,000 miles and tore the rear end out of a 4cyl nissan pickup. the motor was probably due to tuning issues and the factory posi (g80) is known to be pretty weak. gotta pay to play.

totally not STS's fault. sts is probably easier on the drivetrain than superchargers due to the little bit of lag instead of instant boost.