Just noticed I have a Harley 29442 99d air filter ,is this the stock filter, if not it would explain my deceleration pop due to screaming eagle slip on and if the air filter is high flow I will want to get a power commander,is this filter crap and should I go with the k&n replacement

 

Stock filter, no. It's the stage 1 air filter. Was your bike ever flashed with the stage 1 download, or other tuner on the bike?

 

Yes it was but still developed pop,running lean
and want to go with a k&n 0-800
But might run leaner or pop more think I will have to get a tiner(probably dyna jet power commander)

 

Or just go back to stock filter cheapest way to cure popping

 

get a power vision from fuel Moto $399