When i had my Night train i had the dealer install the Vance & Hines big shots with the mid pipes and the o2 sensors and they did the Download tune! I had tons of decel pop and black smoke especially when first started up!

 

XIED's should reduce decel poping just for the fact your engine will run cooler with more fuel. that alone is a good reason to install it.

 

The more i read about the XIEDS the more i think im going to get them for my Fatboy! Rush slip ons and heavy breather and XIEDS!! Should run sweet!!

 

"Should" is no guaranty. They didn't eliminate the pop in my case. If someone added mufflers/pipes and had decel pop, why would they spend $100+ dollars hoping the XIEDs would eliminate it? Put a little more money with that and get a tuner. In my case all I wanted to do was add enough fuel to get rid of the pop (which the XIEDs could not do). I plan no engine mods, so I opted for the Dobeck TFI which allowed me to adjust my AF ratio, while leaving all other functions of the ECM stock. I used their recommendations for a Stage 1 setup and bingo.....done. No pop, bike runs great, and cooler. If someone adds pipes, and has no decel popping, then the Xieds would do them a better job than stock.

 

it depends on the mufflers, if they are wide open mufflers with a load of flow, they should help, but not eliminate popping, normal baffled mufflers it should kill the decel popping.

 

I put a a full exhaust and xieds on my fat bob with the stock air cleaner. I ran it about 300 miles so far and i cant believe how good it runs no pops sounds great. I read on here you cant use them with full exhaust only slip ons but night rider says you can do a stage 1 ac and full exhaust and they will work.

 

its a simple thing they did....all it does it trick the ecm to need more fuel but only within the ecms paramators. so if you do any more then a regular stage 1, thats when you need to go with fuel management set up. but for what it is designed to do, it should work just fine. the dealers are doing nothing more then scaring you into buying their stuff for 400, then they want another 300 to set it up. if they say the ied or whatever the hell its called will void your warranty, then if you think about it, the race tuner should too....whats the difference? i dont know how much this kit is...100 bucks or something, but the company is making a fortune, how much can a few plugs and a peice of wire cost?

 

When i was calling around to different dealers asking questions I found it is only the dealers with a dyno are pushing the sert's and super tuners. One harley dealer I called told me they use fuel packs they dont have a dyno. On here I havent heard anything good about fuel packs. Just depends what they have to sell you is what they push.

I even talked to 2 different guys at the same dealership they recommended different things?

From what I can tell there are so many varibles on a dyno tune that it isnt even perfect. Like temp, elevation, humidity, the do it with no rider or passenger on the bike etc...And from what what I understand they will only tune back to stock lean condition with your add ons because it would be illeagal to make it run right with the EPA? Did you know That?

I say Xieds or an auto tuner is the only way to go If I find the xieds arent working I will be getting an auto tuner of some sort. The whole thing is ridiculous to make a computerized system to make adjustments then limit its capability. I told a dealer that and their reply was its just like changing jets in a carb in the old days. Really? I dont see the comparison.

 

Straight answer, thanks

 

I Spoke to a bike tuner today , he said he has never fitted xieds , so he will not comment on them which is fair enough , but in the conversation he said there are so many variations from stock bike to stock bike performance that he couldn't give a truly accurate power increase for a bike tuned with a power commander 5 , drop in K&N filter , slip on mufflers and a DYNO tune + custom map , he said some poor performing bikes will gain 10 or more HP while a really good bike that is running very well from the factory may only gain 3 -4 HP , but he said the bike will run noticeably better though ,
i should fekking hope it would , thats a very dear couple of ponies ,

the price was £500 inc fitting and supplying the filter , PCV , and the custom map ....and a before and after printout, its not a terrible price i know considering the time it all takes and the price over here of those parts ,

but it just doesn't really seem worth all that extra money when you might only get similar results with the XIED,s and the filter which i can do myself in 30 minutes ,