I put on SE II's with no other change. Bike seems to have more power. The slip ons made the 8 degree injector cough
happen less but when it coughs it does it hard. Going in next week for switch to 25 degree hopefully. The bike didn't seem
to pop much on decel at first. After a few hot days I'm convinced it is running too lean. The chrome on the slip ons has some
black crazing near the inlet. I will probably put the stock pipes back on before it goes in to make sure it coughs for them.
My dealer doesn't have a dyno and they are installing PCIII's. I don't really trust anyone with my stuff. Maybe FL_799 will
share his awesome map he is building.
I would not recommend running it long on just a pipe swap.

 

For those with 06 Dynas that have SE II slip-ons and SE AC, I'm getting new information on downloads from my dealer. He's supposed to call back with the real info. I got so confused on this issue that I raised the BS flag before I spent another dime.

 

The truth is, there is no Harley Davidson download for an 06 Dyna at 1450 with SE AC and SEII slip-ons. There are two downloads for a 1550 big bore kit, SE AC and SEII's. That's the truth as I currently understand it. So the closest download for a stock cube bike with the SE AC and SEII's would be the 34385-06 (if you have 25 degree injectors). Does that sound about right? I guess the best way for this configuration would be a SERT or PCIII.

 

I got the whole SE Stage 1 and dyno tune........see below. For the price...definitely worth the $$.

 

Im running a set of S&S slip ons on mine . Got a friend with the SE II 's on his and you cant hear his over mine at all . Got good compliments on the sound too