Seen this one and got me thinking even waited for the guy to come out, they are nice sounding but if your out for more than a hr better have the plugs in

 

Just went from a 2-1 Fat Cat to Big Radius. Still in the process of tuning with Twin Scan II+
First impressions based on data logs, .5 AFR fat from idle to 1700 then it went real lean 14.8 to 16.1 up to about 2500, then back 13.1 afr rich, and the top end was all lean about 14.5. Trying to tune to 13.8 up to 3000/70%KPA then my map goes richer to 12.5 at WOT.
One of the biggest suprises was the reduction in vibration in the bars and fairing, unbelievable..... I had a 4000-6000 rpm vibration that is totally gone... The flopping around of the hanblebars at idle is 80% reduced...
Overall with the OL on the back, I can tell less torque letting the clutch out till about 1500 rpm then it"s all rip... 6 gear at 55 mph passing feels no different... Might add this is all done to a 103" w/ Red Shift 577 cams.
I'll line it up with a buddys SE Deuce, I would come around him in 2nd gear and just keep pulling him.