thank you, i don't plan on doing any more the this, so it should work for me

 

Honestly, I'm probably still going to get the stage 1 ECU download, as it'll fix the mild popping/leanness on decel, and the rev limit will be higher. But it runs similar to stock, as it does with the slipons and air cleaner- with the added bonus of being noticeably stronger. I do still have the catalyst, though. If you do a full exhaust my observations don't hold water anymore, or if you don't like how the bike runs in completely stock form. Most people don't.

 

So what is being said is that the ECM can not adjust? How will the FL-XIED's work if the ECM can not adjust the air/fuel ratio? If the ECM sticks to the programmed map and upgrades will change your mixture the FL-XIED's will do no good if they rely on the ECM to make a change. I would go with a whole new ECM that can auto tune and noting else if the statements are true. The fuel pak should not work either because it is designed to trick the ECM also but the ECM can not adjust? My own opinion is if the add ons work the ECM will also work but keep at the factory specs. Can an expert clarify please, I need a better under standing.

 

The best course of action is to put the bike on a dyno.

The Harley downloads are designed to allow your closed loop EFI ecu to run between certain parameters. Running like this is a compromise between the best for the engine and emission regs, but won't hurt the engine, otherwise engines would be going bang all over the world, and Harley wouldn't keep up with the claims.

If you can afford to put the bike on a dyno, and know a good tuner then do that, otherwise just get a stage one download, or similar aftermarket tuning device, or keep the bike stock.