Have a 01 Ultra with V&H true duals. I'm looking at a set of RC Components part # RCX103C. Anyone know some info on them. I'm trying for a deep tone.

 

Are you saying deeper, or louder? I have an '03 electra glide classic and taking off the exhaust that came the previous owner put on. In 2010 I believe they put the cat into the header pipe which allowed HD to put less restrictive exhaust pipes on but EPA compliant. I just picked up a next to brand new pair of stock 2011 pipes for free from my dealer (spending $1000.00 on repairs may have something to do with it), and when combined with the older non cat header pipes you get a nice sound, and the pipes are stamped that they are compliant if you run into an over zealous official. You can find them almost anywhere for cheap (less than a hundred dollars) because one of the first things guys do is take off the stock exhaust. and what do the shops do with the pipes?

Part # 65846-10 or 10A right pipe
#65538-09 left pipe.

Just something to consider and you save a hell of a lot of money!