What's a nice set of pipes to put on a 2014 ultra limited?

I prefer Vance & Hines but Hookers are good pipes also. Don't forget since your bike is so new you will most likely need a tuner box to go with the pipes you choose.

Depends on what you want out of your pipes.. what sound and how much for performance.

I have SuperTrap slip-ons with internal discs. The added a slight bit of performance and I really got them for the way they sound. A nice deep rumble.

Anybody using those screaming eagle 4 inch street cannons?

It depends alot on what you are looking to get out of your pipes. Are you looking for improved performance? How much of an improvement? Do you just want some pipes that sound and look good? How much do you want to spend?

Keep in mind that simply changing pipes will not significantly improve performance. It may help the scavenging process and improve efficiency slightly but you will not see HP gains without changing the air intake, the pipes, and adjusting the air fuel mixture.

If you simply change pipes there is no need to worry about air/fuel ratio.

I went with V/H head pipes and Rineharts 4" but if your not sure ride it stock and and try to get around bikes that have made the changes,I personally did not like Street Cannons sound but everyone's different,

V&H on my Heritage. I'm never satisfied with the sound but once they are on you can't take 'em back.

Peace