Originally Posted By: alarmguy
Hey Rev, don't sweat it, your UOA is fine, even in a perfect world it cant be much better. Remember these words on your next UOA and you will see all the metals come down much further.
Wont need to remap with a CAT removal and dont worry about the EPA, they are YOUR employees and should not be making you sweat, never mind the fire danger should you spill some gas.
Removing the CAT will not require a remap. or let me say, countless people who removed the CAT did not do a FMS or Remap.
and ... last but not least if you want to see pages of UOAs on Harleys here you go, in fact one recent one, the guy would only wish he had one as good as yours!
HD Forums UOA
Note the link takes you to the last page 8, you can go backwards from there.
BTW, this wasnt a "worthless" report, you will be glad you got it, once you can compare it to your next one and see how the metals drop.
I think in 2012 Harleys went from speed density injection to mass air so those particular bikes don't need to be tuned for any intake or exhaust mod. You'd have to actually increase the airflow by swapping cams to require tuning.
And from experience building my bike I can tell you that the bikes don't run lean. In fact they still run too rich as evidenced by the massive carbon bud up on my bike at 5000 miles.
When I got my bike dynotuned I got them to lean it out even more at cruise. 107hp/115tq and gets over 50mpg.
And I've put 25000 on the bike in its current state of tune and when I inspect inside the plug hole every season there is less carbon build up then when it was built so my tuner definitely got something right.
And let's get serious here. An air cleaner and exhaust doesn't improve airflow in any meaningful way so even with a speed density system a tune isn't required.