This better. (unloaded run)
You guys need to understand this was a very reputable dyno, from a very reputable company. It has an eddy current brake on it that loads the dyno down to a simulated real world load vs an inertia dyno which applies one laod the same way all the time. You also cant compare two dynos because no two ever read the same. You need to be looking at the differences between all the pipes ran on the same dyno, the same day, on the same bike. Thats were the answers are here.
All 3 of these runs were with Pro Circuit pipes and 296 silencers.