Bought a used 06 Ultra and the previous owner had put on a SEfilter and did the map for this set up. I don't want to re-map or put on a fuel pack. It runs plenty fine for me but I'm just looking for a bettter sound. What are my choices for slip ons with all this in mind?

 

You should be OK with just about any of the slip-ons that are popular. I'm assuming that when the previous owner "did the map" that what he did was the Stage 1 Download. If that's the case, you will be fine with slip-ons and no additional fuel management work. I have the Stage 1 Download, SE Intake, and SE Street PerformanceTouring Mufflers. The bike runs really well. I have also had this setup with the Vance & Hines Oval Slip-Ons and had similar good results. The Oval Slip-Ons seemed to provide the best performance, but were quite loud for my tastes. The SE Street Performance Touring Mufflers have a deep rumble and provide more sound without waking the neighbors but not quite the performance gains that I experienced with the Oval Slip-Ons.

Here's the Oval Slip-Onson my '07 Road King:


And here's the SE Street Performance Touring Mufflers with Fishtail Endcaps:

 

Must be the way those fish tails catch the light or something, but they sure make the bags and signal lights more vibrant/shiny/colorful!

 

Don't know if my experience on my used '07 applies to your '06, since the '07 bikes run very lean from the factory, but here is what I discovered:

I purchased my '07 RK Classic used from a dealer with 2400 miles on it. It has a Screamin' Eagle air cleaner on it with stock exhaust.The dealer was not the original selling dealer and they had no service record on the bike. Before I paid for it,I had the dealer put it on their computer and they told me the ECM was stock with no remap. I was concerned that the bike was running even leaner than it was from the factory. According to the accessory catalog, the Screamin' Eagle air cleaner requires an ECM remap.

Yesterday, I had the bike dynoed. The A/F ratio varied from 13.5 all the way to 16.0, depending on the RPM. Mostly the A/F was around 15.1-15.3.

I assume that with pipes and an A/C, you will definitely need some device to richen up the mixture.

Even with stock pipes, I plan on adding the PCIII to correct the lean situation.Thatshould get me a cooler running bike.

 

You should be able to put on just about any slip-on you like as long as it's not to free flowing like drag pipes..

 

would drag pipes work on the 08's?

 

try search section good info should help.

 

Drag pipes will work on the 08's just make sure that when you do put them on drill a hole in the end and run a bolt through the back to increase the backpressure if you dont the bike will just fall flat on its face unless your planning on putting a big bore kit in the bike i wouldnt reccomend putting drags on a 07 or 08

 

Personally i think they sound goofy on baggers anyway. They sound great with a carb bike other than touring.