“First let me thank you for the excellent filters and help you have given me over the years. Your products are at the top of the excellent column.”

“The Harley filter has saved me a failed engine. I will update you on developments as the repairs progress. I use Amsoil MCV, the absolute best synthetic available. At my 10k mile oil change, I discovered a small quantity of plastic / nylon / teflon granules trapped in the filter. The bike ran perfectly, with no engine noises or performance issues. I assumed what I was seeing was factory sealant used in case assembly, which was flaking off and ending up in the oil. I changed the oil at 18k in preparation for a trip to San Diego at the end of this month, and found another quantity of granules in the filter. That made me start really paying attention. I went to several Harley forums, and discovered that in the twin cam engine, prior to 2007, the spring loaded cam chain tension shoes (2) would wear down to the metal backing, and after shredding the backing, would lunch the engine due to plugged oil passages and damaged roller bearings. Harley re-engineered the tensioners beginning with the 2007 models, and made them a totally different design, tensioned with a hydraulic piston using engine oil pressure. Most posters on the Harley forums rave about the new tensioners, and say the problem has been solved. I have a 2007 FXST Softail Standard with the new tensioners. One poster with a 2007+ bike reported a shoe failure due to factory assembly error (spring behind piston instead of in front), another reported shoe failure due to crank runout ( a common late twin cam problem) causing the chain to tighten and loosen extremely each revolution. I will drive my Toyota to San Diego, and pull the cam chest apart as soon as I return. I will send you pictures and narrative of what I find and what I do to correct the problem. Long story short, without the ability to find the foreign matter in the oil in good time, old John might be sitting in Yuma or El Centro at high noon on a 115 degree day looking at a $2k+ repair and no way to get home.” Thanks again, John

“I researched and researched these oil filters. I looked at a couple of knock-offs as well. I had seen the demonstration a couple of times at Sturgis. While the original filters were close to 50.00 more I decided to go with them instead of the knock-offs. Actually both my friend and I bought filters at the same time there. A couple of extra quad seals were thrown without charge.

When I got back to Denver I changed out my oil and installed your filter per the instructions. I held my breath and started the engine. After a bit of a warm up I looked down at my pressure gauge. Either I was on drugs or the oil pressure had gone up about 5PSI. On an old EVO engine, oil pressure has not ever been one of the EVOs strong points. At rush hour traffic in the dead of summer, I would always have to throttle up just to keep the oil pressure light off. I noticed with this oil filter that I don’t have to do that as much if at all. Regardless of the filtering properties the fact that the oil seems to be flowing better is enough for me. Of course not buying a new oil filter every time will be nice for money saved and of course the environment. As soon as I can find which one fits my 03 TrailBlazer I will be buying one for it as well.

I have yet to come to a new oil change point so I don’t know what goodies the filter will catch but I am sure that I will be quite happy with this filter. When I finally trade in the ol paint shaker I plan on pulling the K&P off and transferring it to the new bike. Nope, no body is getting this filter….”

Mark Jester

“…2000 miles later, I wanted to share some good news with you.

I have, since the clutch catastrophe, replaced the shattered disc and flushed my oil several times. My clutch parts came in earlier than expected so I bought two paper filter to get me through the initial start up flush. As expected the first filter had a decent amount of debris and didn’t really require a disassembly even so, I did it anyway. The second paper filter/flush was installed and run for about 15 miles and two fill heat cycles. Upon disassembly of the filter things looked pretty clean, barely any debris at all.

The real eye opener came on Monday when my stainless filter came in from you. I installed it, ran a few laps around the block then pulled it for an inspection/cleaning. I pulled about a level tablespoon of clutch debris out almost immediately! Another inspection/cleaning later that day revealed about another tablespoon of debris. After this things seem to have calmed down a bit and only normal wear and tear pieces seem evident.

The only reason I could logically relate this to was that the oil flow was actually increased s much that the areas normally calm enough to collect debris were now flowing too much oil to collect debris, thus kicking it up and into the filter.  I have since put over 2000 miles on, most of which are hard off-road miles and have had excellent thing to say about the filter and its performance.

I really just wanted to take a few moments to pass on my appreciation, I’ve seen many products that fall short of their claims however, I’m hooked and will continue to install your product into any now bikes of mine and also pass the good word about your products to friends and family and chance I can!

Thanks you for an excellent product and service.

Joe Williams

‘ Got my second K&P Filter from Pero. Great People. I am always checking ,my oil temp, it usually is between 212 and 214 degrees and the hottest. Since I installed the S11 the temp has dropped 7-8 degrees in all drivin conditions and at all different ambient air temps. The only thing I changed was the filter. Speaks for itself I believe.

Thanks, Jim Lavelle

“You guys are top notch. And so is your product. You handled my situation professionally, fast and very fair. I will continue to advise others to use your filters!

Thanks, Bill Narhi

“Attached is a picture from a bud on the big dog forum that had shown pieces of paper media on his K&P filter for the first 2 oil changes after switching. Never has he seen another piece since then. His big dog now has over 60k on the motor with nothing done to the motor. He expects to get many more miles on the motor with no problems.”

Chris C

“Received my filter back today. THANK YOU for checking it out for me… Definitely puts my mind at ease. This whole experience was way above & beyond my expectations.

THANK YOU!” Josh A

I recently did a complete engine overhaul on my bike, which included extensive machine work. I went with bigger valves, and a stage 2 porting job on the heads. In addition I had the bottom end completely rebuilt which included lightening and balancing the flywheel. After I got the bike back together I had a hard time adjusting out the noise in the hydraulic tappets in the rear cylinder…

After just about wearing out the jam nuts on the pushrods from adjusting them so many times to no avail, I decided to scrap that low flowing paper throw away oil filter cartridge, and upgrade to one of your K&P lifetime re-useable filters.

I just have to say upon starting the bike after the first oil change, I was IMMEDIATELY IMPRESSED. The tappet noise from the rear cylinder cleared up immediately! I then took the bike for about a 15 mile ride and dropped the oil again to have a look. I was shocked at how much metal was floating around in that new engine. I’m told that is a normal condition for an engine that’s had extensive machine work.

So now instead of the paper filter plugging and allowing all that metal contamination to flow around in my engine and interfere with the operation of my hydraulic lifters (which have very tight tolerances) I can clean my new K&P filter anytime I want and have peace of mind knowing my oil is being filtered properly.

THANKS AGAIN JOE PERO, and THANKS AGAIN to K&P ENGINEERING!!” Very Respectfully, MSgt Dave Wosick NDANG