Today we did some more jetting and gained more power. The final outcome was a 165 main with no lid. I know that this is the biggest out there for the Z, but it flat out rips. I had it out at Pismo on Saturday and Comp Park on Sunday and I could not believe the power gain. I posted the updated dyno sheet on my site along with some pictures (site located at bottom). These are the biggest power gains of any pipe manufacturer yet.