I know there is a fine line b/w overall flow, backpressure, diameter and length of primaries, etc... Is there any advantages to one over the other performance wise b/w the HMF CF Hi Mount Dual cans when compared to the Brock/Hindle Streetsmart? Ronins bike with HMF is the look I am going for, but of course I want to make sure, since looks do not account for performance. Thanks