SORRY BUT the OZ pipe couldnt be more of COPY CAT LOL not the it matters buy what you want the others are much different   I have a CARPENTER  BRUTE PIPE  on my modded Rocket it works great and looks great  but others have different taste  thats why the have all the different styles    I run BRUTE to compliment my modded 265+ HP CARP Engine as they where developed together   BUT STEEL  runs the same pipe on his STOCK ROCKET and makes 170+ HP with his super high mileage never rebuilt 135000 mile 2005 ROCKET