Hog Mike
I ran the 2.25 he had in 09 on my 09 CVO Road Glide, with the factory head pipe cut, cat totally removed and welded back together. I also used the TTS.
I liked them a lot, but was looking for something a little deeper sound with out loosing power or back pressure. I loved the sound of the V&H monster rounds along with the looks, however I lost a few foot pounds of torque, down low. Not worth the deeper sound or look to me, switched it back to the 2.25.
On the 12 CVO Road Glide I am running Fuel Moto head pipe and the Jackpot pro tour mufflers and TTS tuner. Power is about the same as I had with the 09 and fullsac set up, and the fullsac set up was way less money. The sound is good, but not that much better than the fullsac sound.
So I was wondering if the only change between the 2.25 fullcac cores and the 2.25 fullsac SD cores was sound. I know I am doing a Fullsac head pipe on the 13 CVO Road King and the TTS tuner.
I am trying to decide between the 2.25 cores and the 2.25 SD cores or Rineheart 4 inch slip ons.
I am thinking about doing a cam, 10.5 pistons, a little porting, on the 13. So I do not want anything that will loose torque or HP. It can be louder than the 2.25 were on the 09, as it will not be my long haul bike, 300 mile days or so at most, un like the road glide I do 600 or 700 mile days on.
FYI:
I went with true duals on my 113. Has cam, compression, nice heads etc etc.
I kept the Fullsac 2" cores on the cvo mufflers ( I like that look on that bike) and it's actually pretty quiet until I twist the grip. The larger cores were not available at the time I did this, and I hesitate to change ANYTHING on that bike just because it runs so well. It's a sort of street glide with big stereo and I can hear tunes at freeway speeds just cruising. Just my "around town bike",
my 2010 has the 1 3/4 cores because we like QUIET on the long hauls. There is some power to be had on that bike, but, it's a trade off for the QUIET my wife likes.
I'm not chasing dyno numbers, I just want a well-mannered bike with plenty of passing power (and pulling my trailer sometimes). ALL my bikes are set up to do this and not attract the local cops.
JMHO
