look up miller mufflers on youtube i have a couple videos there
The PCV is not only for power its xfor tuning. A stock bike would benefit. If all you want is louder pipes then some of the suggestions here are good and may not require a tuner. Performance pipes such as DnD and VnH would benefit from a Lloyds filter and a PCV. Throw in a timing adjustment wheel for good measure anda set of cams and those performance mufflers will really sing .I'm going to install a pair of D&D slip on pipes on my 2013 Victory cross country and was wandering if I need to add a power commander or do anything else to it. I'm doing this to get louder sounding pipes, do not really care to increase horse power.