Originally Posted by ALStensby
Gains were different for all three test bikes, but his numbers were all mid to upper single digits. It's a five step-up system. Three in the headers, two in the slip ons. Single piece heat shield. Looks pretty nice.
One thing to consider when looking at such dyno curves is the area under the curve.
IIRC, the point of using the scavenging effect of a 2 into 1 is to improve midrange performance. True duals may buy one improved top end at the expense of midrange. IOW, they may run great WFO, but not so hot where most people will actually operate them.
In any case, I like the look from the right hand side. The tuck in and under nicely and don't appear they would create any cornering clearance issues. Do you have a picture of the other side of the bike? I googled but came up empty.