wow. just installed the xied oxygen enrichers on my 2010 Roadking. Cannot believe the difference. have seen plenty of possative feedback on this site for them but was not expecting the results I got. Did not do any temp measurements or dyno time to give solid numbers but I finally have tan plugs, tan colour inside my mufflers and the "roll ons"... absolutly flawless. no more lag or hesitation. smoothed throttle response out and got rid of the slightest ping i had at low rpm pulling. I am not affiliated with the company at all but I beleive credit is due (and I am a grumpy bastard who hates to spend money) If you are considering xied's...DO IT you wont regret it.
By the way I'm running a 2010 roadking with catless stock headpipe, stage one download and aircleaner and a set of rinehart slip ons.

 

I'm an old grumpy tight fisted bastard too! I have the same set up on my 2010 Ultra except I have Rush slip-ons and no xied. Where did you buy them? I've been thinking about hooking them up to my scoot.

 

I bought mine off a forum member here in the classified. Great deal and same results. Look here first, there alway someone that is moving up to another tunner of some kind.

 

What brand did you buy?

 

exact set up i'm running on my 2011 heritage, with the SAME resultS. I have used xieds, stage 1 slipons etc on my last 2 harleys with positive results and good mpg

 

i BUY MINE ON AMAZON, LISTED AS NAMZ, SAME PRODUST, DETAILS AND PART NUMBERS ON NIGHTRIDER XIED WEB SITE, MINE WERE UNDER $100

 

I bought mine from a supplier. They sell them through namz brand name but its still the nightrider badge and product. Great value if you arent planning on cams and big bore and all of that stuff. Really surprised the difference they made

 

I think there made by Nightrider. Don't have the paperwork anymore. I'm sure someone will correct me if I'm wrong.

 

I would bet if you did cams and a stage 2 download they would still work just as well because they are "offsetting" the o2 sensir feed back. You would need the download for timing and full throttle values and then xieds would handle steady cruising values. Uh oh. Now im in trouble... Dont tell my wife what im thinkin guys. Lol

 

Lets not get crazy, they are a nice inexpensive solution for AC/Pipes, but not appropriate for a stage II.