micron serpent exhaust vs drummer?

[evilokc]

does the micron serpent make more power than the drummer? is it louder?

 

[Cooter]

I understand the theory, but in practice the headpipes are maybe 24" long so any possible increase would be so small it would be within the error margin of measurement. Good maintenance, quality fuel, optimized tune, would be a better choices to eek out any tiny bit of HP.

IMO, not enough to justify the cost. It does look good though.