Im considering a full Yosh system in the near future, but wondering if PCIII is worth considering for my slip ons ? Any performance benefits to be had ? Im not expecting miracles, just some improved throttle response.. Also I am selling my Yosh stainless slip ons before new system ordered.Anyone interested in a perfect pair of cans, 300.00 takes them. they are 2 years old. I will take pics for anyone interested. No dents,dings, or scratches.