Id prefer aprilia over Ducati any day. Never heard competition werkes exhaust. Not sure if I spelt it right, but it's a nice pipe. Educational channel here for me, lol.
Agreed. I have a 2007 R1. Sucks having those two converters in the exhaust system. Slipon was the only thing I could afford at the moment and went with 2Bros Carbon Fiber. Looks mean but, without aftermarket mid pipe it's not as impressive audibly.