Delkevic 13" tri-oval stainless exhaust

No, they have nothing to do with a PC.

They are for the R/R, which is known to fail (along with other wiring) on the VFR. Read this link for info, especially post #9.
http://vfrworld.com/forums/showthread.php/39277-How-to-fix-common-regulator-Stator-failures

And go to this website to read about the Ricks product and the VFRness (which was created by a VFR rider).
www.wiremybike.com

 

I had an 18" Carbon on my GSX650F. AND! For the most part it stayed Warm; can keep your hand there warm, to the touch. dragstrip days included. if you had hard bags, I'd HIGHLY HIGHLY recommend the carbon version.

but if I had it to do over, or if I knew how it was to drlll out, shorten, and re-rivet mufflers, I'd have had about a 12, or 10 inch muffler. barely long enough to fit into the stock location.