I had my C5 dyno'd at Texas-Speed today, the service was excellent, as always. The TSP crew really helped me out and went the extra mile to make sure my car was running at its best.
Modifications:
PRC 215 heads
MS4 Cam
LS6 intake manifold
TSP 1.75" longtube headers w/ x-pipe
underdrive pulley
Textralia clutch and pulley
RPM differential with 3.90 gears
Results:
There was absolutely no 'special dyno treatment' for my car. There were no tricks used here, no icing of the intake manifold, no octane booster, just strapping the car down with pump gas (91 octane) and making some pulls.
Now I need to do a pull with the juice turned on.