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I don't want to come off as cocky or rude or pompous or a know-it-all..........but jeez, STOCK Harley filters are fine, however, I got HUGE gains in MPG's when I switched out the stock muffler bearings! I think I used Timkens and you could just HEAR the exhaust flowing better. Best upgrade I ever did!!!
Well sir, it's pretty rude of you to not give us a part number for those muffler bearings...
I was skeptical about the K&N, so I figured I'd try it. I was getting 45.9 MPG with the stock HD filter, but now I get at least 45.91 MPG from the K&N. So yes, better performance.
if all you changed was the oil filter and you're now not getting any blow-by into your intake, then that could very well be a bad thing. That oil has to go somewhere...
Well sir, it's pretty rude of you to not give us a part number for those muffler bearings...
Forget those Timken muffler bearings. I heard from a tipsy HD parts guy that there is a guy who works 3rd shift there who has a wife that once vacationed in Japan. So that really isn't a true american product. Besides they use a 6 micron spacing between bearing rollers and the MoCo will deny any warranty claims because it exceeds the 5 micron requirement.
Last edited by whyrzwaldo; Apr 8, 2014 at 07:28 AM.
I use the OEM , however My local Napa store in my area just started stocking the wix brand filters in black and chrome.
K&N, Wix ,Fram , Champion ,OEM etc. are fine use what you want.
I have a 2013 Ultra classic and was wanting to know which aftermarket oil filters are the best to use. I'm looking for an increase in MPG.
PC Racing oil filters, they are permanent, replacement, cleanable and they flow, clean the engine better than any other stock filters or aftermarket ones...
Check them out, have them both on 2 of my Harleys..
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