The harley stage 1 download only works with harley parts, ie, se a/c, and se slip ons. If you use different slip ons, then the download is not matched to those mullfers, hence, this could be the issue because it is likely that the harley slip ons don't flow as well as the ones you put on. I've got the harley se a/c, stage 1 down load, and the se slip ons and everything works great.
2009 Road Glide
Black Pearl, ABS, Security, and Cruise
Stage 1 A/C, download, and SE Slipon's
S&S Flywheel-balanced and welded
Timken Bearings in the case
Progressive 412 12" shocks
Last edited by jcanrun; 03-20-2011 at 04:05 PM.