Why on the Arleen Ness website do they say they do not make a big sucker for the 103?
Just went out their site....they don't specifically give fitments for engine sizes...just by model:
"Fits 99-07 Carb equipped Twin Cams and 02-09 FI Twin Cams (except 08-09 FLT)"
Eastern Perf. still has one of the best prices...$125 for the chrome unit which includes UPS ground shipping to the lower 48...$103.95 for natural look backing plate. Good place to do business with and they ship quick.
http://www.easternperformance.com/products.php?product=Arlen-Ness-Big-Sucker-Air-Filter-Kit-Stage-IThe one highlighted below is what I have on my 103" and it resides nicely under the stock football cover. Installation was easy and performance results are excellent. No oil misting issues due to the way the Ness system is designed.
Sales propaganda:
Features a one-piece aluminum backing plate/carb support bracket
Eliminates the need for banjo fittings, hoses and filter
Breather passages exit at the mouth of the carburetor, creating a virtually closed-loop system
Stage I kit includes a high-flow filter and accepts 93-05 oval or round OEM outer cover
All necessary hardware and instructions are included with each kit
Stage I
AN18-500 For 1993-2005 all Big Twin Models with CV Carb and 2000-2005 fuel injected Softails,2000-2004 Dyna, 2002-2004 Touring fuel injected models (will not fit 1995-2001 Touring Models) (natural)
AN18-503 For 1999-2001 Touring Models with Fuel Injection (chrome)
AN18-505 For 99-06 Twin Cam carb and 01-09 Twin Cam Delphi fuel-injected models(natural)
AN18-507 For 99-06 Twin Cam carb and 01-09 Twin Cam Delphi fuel-injected models (chromeAN18-510 For 2008-UP Touring Models only- Natural Aluminum Backing Plate
AN18-512 For 2008-UP Touring Models only- Chrome Backing Plate
Hope this helps....ez