OK, so we have this supercruise, and it ends here at...well you all know where I work... so we give away a catback system, and decide to install it there on the spot, and dyno the car before and after to show the gains...... The car- a stock 03 Cobra- Baseline 370rwhp Install catback Dyno run 1 382rwhp let car cool off Dyno Run 2 383rwhp let car cool off, drive the car at 3000RPM for 3 minutes Dyno run 3 386 rwhp let car cool off Dyno run 4 389rwhp drive car around a bit Dyno run 5 393rwhp We stopped there, but it was interesting to see the dyno numbers go up and up each dyno run. Based on previous experience, two more runs would have gotten us to about 395-397rwhp Also side notes- They decided to see how fast they could install a catback last night- they started with the car on the ground and had the car back on the ground again with the catback on in under 18 minutes..... Whats really interesting about this, is you see so many dyno comparisons, but you wonder if they dyno the car 8 times with each set up or only once or twice.... Interesting stuff...... Now before someone tries to flame me, these dyno runs were done at a Mustang show we had here, with 143 Mustangs in attendance (well over 300 people), and was done to a random vehicle owned by someone who won the catback.... If that is not standing behind your numbers, I dont know what is- I have not mentioned the name of my company, as I thought this was interesting tech.