I've put V & H slipons on my '06 Dyna to get a better sound, and I intended to stop there. It backfired a bit and popped quite a bit on decel, so I got the Fuelpak for it. Fuelpak manual says a high performance air filter is required. My question - Can anyone reccommend one? Is it just a matter of replacing the filter, or is there more to it than that? Can I keep the original cover?
Thanks for your help.

 

Harley's SE a/c and you can keep yout cover or some around here have opted for the Arlen Ness "Big Sucker"

 

Check out K&N RK 3909.

 

Easiest would be to put a K&N element for about $59.00 in and keep the stock AC housing.
I got the Arlen Ness myself.

WillieC

 

"High Performance" just means better flow than you have now. Is it required? No, probably not. But it will run better with more air.

Air cleaner assemblies range in price from $100 to $500. Although why anybody would spend $500 on an air cleaner is beyond me. Cruise through the aftermarket catalogs and web sites for some ideas as to what's available. I know this is hard to believe (wait while I put on my "Surprised" face), there are no facts to back up the advertising claims! I know, I was shocked too.

The SE air cleaner kit is kinda nice, but overpriced. It has a slightly taller filter element. And a wide open backing plate. But it still draws oil into the throttle body just like the stock part does. I'm not really sure it's worth $130.

Best bang for the buck comes from modifying the stock air cleaner can. It works, and it's free. Remove the outer football cover. You can see that all the air for the engine has to come through those little slots in one corner. Not going to get it at 5,000 rpm's, IMO. Use a 1" hole saw, and drill a few holes in the backing plate. You don't even have to remove the air cleaner element. Now put the cover back on. Hard to tell for sure, but probably nearly as much air flow as the $130 SE kit. Since it's free, I would try that first and see how it runs.

If you feel like taking the backing plate off the bike, you could even cut off the entire bottom portion. That would really open up the air flow.

 

Thanks! Thats a great help

 

The screaching buzzard and Arlen Ness type air cleaner kits have a backing plate (base) that provides a nice smooth radius into the throat of the throttle body, far better than the stocker. Above all, go for a K&N filter element, none are finer.