In looking at pictures of the Revworks UEL headers and the JDL UEL headers I'm guessing the JDL will have an even more pronounced UEL sound as the collector is further downstream and the tubes look a teeny bit longer. I guess I'll find out when I get my JDL finally as a couple guys in my area have the Revworks. It will be a UEL sound battle.
Too bad they both just had their Innovate superchargers put on and tuned today and I'm still waving from the sidelines.