On the Dyno
Stock Exhaust
  HP TQ
Run 1 517.01 500.36
Run 2 515.45 496.20
Run 3 514.44 497.16
Corsa RSC Track Exhaust
  HP TQ
Run 4 536.12 496.35
Run 5 530.20 504.46
Run 6 530.26 509.65

Max Improvements (peak to peak): 19.11 hp and 12.49 lb-ft. (All runs were performed on a Dynojet dynamometer and are SAE corrected.)