Join Date: Jul 2008
Location: Orangevale, CA
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This is my experience with a K&N intake on my truck. I bought and installed it in March of '06. I did buy it before joining this forum and before I read the bunches of info PRO/CON about K&N being on diesel engines. It's working for me.
After I read the negatives, I did see that there were some who had actual personal experiences with them not working well. Many, though, just jumped on the K&N Bashing bandwagon seemingly just 'cause they could. Everyone needs to make up their own mind.
I do clean mine more often than the 50,000 miles K&N says you can go. I'm not an off-roader, though occasionally I have been on dirt or gravel roads. The truck is my daily driver and I also tow a 31' 5th Wheel up to 10 times a year. For a while, after I read the negatives, about once a month or so, I would take the cone filter off, take a clean microfiber towel and reach into the tube going to the turbo and wipe the tube to see if there was dust, dirt or anything else in there. I did not find any. Now I wipe the tube when I clean the filter and I still don't find anything in there. My boost gauge still shows the turbo making plenty of boost while I drive and I can still hear the turbo whistling plenty loud out the exhaust after 4 years of use. So...my conclusion is, FOR ME, K&N is a good filter.
I refer you back to the end of the second paragraph.
Owner / Operator:
2001 F350 | 7.3L PSD | 4R100 | Crew Cab | Long Bed | 4x4 - 222
,000 miles - 10 Years of ownership
Autometer Z-series Gauges | K&N GenII FIPK | MBRP 4" TB Exhaust | Hypertech PP3 | Toyo OC ATII (LT285/75R16 "E
") | SilverStar 9007/9145 | Dura-Flap Mud Flaps
DD | 5er Puller
Pilgrim International 31RE3SLF5
- IC2 - '76-'80
Last edited by SuperCrutyPS; 07-26-2010 at 12:28 PM.