Well here's a mystery I can't solve.
Have 2004 FLSTFI with fuel injection. The exhaust on the bike are Screamin Eagle II, but with no O2 sensors. I was just about to order V&H Big Shots when I realized if its injected, it supposedly needs the sensors.
The V-Twin runs fantastic in virtually all riding conditions and no weak spots from low speed to full out freeway riding.
My dilemma is, do I go ahead and order the Big Shots as though the bike is a carb system (FLSTF) or order it for the FLSTFI? There are no sensors hidden or tucked away that I can see, so I'm assuming they were eliminated.
Looking at the original owner receipts from his local dealer that may be related shows a purchase and install of the Screamin Eagle II shotguns and something called a SE A/C Kit, Carb TC8.
I'd be grateful to anyone that can if not solve this mystery or at least ease my mind as to which direction to go on the new pipes.
Thanks

 

The early Delphi EFI systems, like you have, are open loop only.... meaning they don't use O2 sensors for feedback.... You had no O2 sensors as OEM from the factory..

Harley didn't start using an EFI system with both closed loop (O2 sensor feedback) and open loop (no O2 sensor feedback) tunes, requiring the use of O2 sensors, until the 2006 Dyna models, and all other models in 2007.

You can use either exhaust for your bike... Your EFI will require the O2 sensor bungs to be plugged (plugs are like $10/pair). So let the price/availability dictate which you buy.

However, some will get the exhaust with the O2 bungs & use plugs, just to have them for possible future tuning and/or other modifications...

Note: The " SE A/C Kit, Carb TC8" is a high flow air cleaner kit. That, along with the SE exhaust, means you have a "Stage I" mod...

Hopefully they also did the HD Stage I download for the EFI, otherwise you'll be running lean.... Prior to HD selling tuners, they sold cartridges to flash the EFI with the proper Stage tune for your mods. You are looking for a receipt, or spare part, that looks like this for your Stage I download...



Your part number could have a suffix of 00 thru 05 instead of the "06"

 

Hattitude
Wow. That's about as concise and soothing a reply I could have hoped for.
I don't see a reference to that part number on this invoice, but grouped in with the exhaust and the TC8 components was something called; 32725-04A/DT 1450 ST1 ST/FXD '01+

Thanks a ton for that information. Lifts a load off not only for which pipes to go with (port/no port) but knowing I'm not running around with someone's mistake.

 

That's it....!!!

The #32725-04A is the Calibration ID number. That # will show in your ECM for the tune ... (the "DT" means it's available via the HD Digital Technician computer for download). The cartridge was part #32957-04A. They obviously used their digital technician computer for the download, thus the #32725-04A/DT line item...

They had a bunch of Calibration numbers and cartridge numbers for each model and year, during the early twin cam years. I happened to find the one I posted on an internet search. I missed yours when looking at an old performance calibration chart I saved, and yours was right at the top....







Anyways...... You're good to go.....

Enjoy the new ride...!!

 

Hattitude
Sorry about the late reply.
That is a bundle of information that would have left me spinning for months. Really appreciate this and now its onto the swap.

Have a great one!

 

Great information being shared is what this forum is all about. Great job hattitude!! Makes me proud to be a part of this forum.