So if I understand what you're saying, and by looking at the chart, there is basically zero difference between the "B" pipe and the new "D" pipe?
No. The B-pipe was removed before the dyno run. The base line and final runs were all DX pipe. If I recall the dyno runs /tune
with the B-pipe, my numbers were 104, and 118. Also, the tuning was not done at the same place but both use DynoJet's for the dyno.
The baseline was rich to start as of last year I began to get some pinging, fuel octane issue. There was some timing removed, and fuel added to my tune
sent email and downloaded myself which took care of the problem. Now adding the DX pipe and starting over, it was rich on the baseline runs,
then with the tune, found hp and torque. Our main concern was the A/F ratio, and as you can see it is a definite straight line and as for the numbers, it is what it is...
Once again, thanks to Jason at Faribault Harley!