I was wondering why the F(muscle) pipes make 125hp (not sure RWHP) and if you ask around the 2-2 pipes that you buy for any other Vrod drop the HP by 20 or more? Why would that be these engines are all the same are they not? I mean the BUB2-2 pipe and Staggered 2-2 pipes loose power over a stock 2-2 setup?? It just doesnt add up to me, the aftermarket pipes should produce more then stock power shouldnt they? and what makes the muscles exhaust special that it doesnt loose power???