February 6, 2012 7:18 AM PST
Just running them stock on my '07 Road King. Really haven't noticed any problems with popping on decel.
I did have issues with them on my '02 and had to have the carb re-jetted.
And yeah, I was pretty impressed with how they took care of me when the weld broke. They didn't even ask me to send the old one back, just emailed them a picture.