I made a phone call and spoke with Ron @ RS Motors. Cost options: 1. $70 for 2 runs (additional $15 for each additional run) 2. $100 for 1 hr. He said that stock WRX's runs about 190-198 whp on their Mustang dyno. I've checked around the net and stock WRX cars run about 170 whp on Mustang dynos. :???:
Different calibration file probably. The 170whp is quite a bit higher than I normally hear for a Mustang dyno.