I understand the "scavenging effect" is what the 2:1 offers, giving some increase torque at lower RPM's but Duals that combine do the same thing plus get your better performance on the highway (@higer RPM's). Whats the draw? Has anyone here dynoed their rides? 2k seems like a lot to spend on exhaust without knowing.
Below you will find an assortment of sample dyno charts for various Harley combinations, this is a work in progress. We will be adding more & more Harley charts as well as Metric & Euro charts as we go from the 2000+ bikes we have tuned over the past 2 decades. Note the data in [...]