Actually replacing the MAF is quite cheap if you exchange the new one with the old core. Does the K&N filter make the truck sound any different? I know it does for my four wheeler.

 

I have the full performance intake system from K&N, not just the drop in filter. That along with the custom tune from Troyer for the A/F ratios makes the engine sound a ton throatier throughout the RPM range, especially above 3k when you can really hear that intake.

Thanks for the response jbrew.

 

I used to buy into the hype. Then I saw the actual numbers. Paper filters for my trucks from here on out. Only other option I would consider would be a non oiled cleanable filter.

 

Yep , that's all I'll run after my K&N episode/drama. I got sick of dealing with it.

AEM and I just heard Volant has a Dry element now, for CAI's. But I've been running the Amsoil dry element and that suckers been awesome. Almost 3 years on it and it still looks new. 100,000 mile nano filter reasonably priced.

 

Ford Motorcraft filters are $14.99 at O'Reilly/Kragen Auto Parts and they are kept behind the counter.

Of all the serviceable/Hi flow filters I have used through out the years I would say that Airaid has the best cotton gauze air filter. Also, I've never had any issues running these type filters on carbureted, TBI, speed density or MAF vehicles except my '94 Ford Lightning. The circa 1995 K&N panel filter was allowing some dirt through due to it being worn out.

 

I've never had any issues with K&N's, run them on the truck and my old car. My MAF was very clean and not one sign of oil when I removed it to clean it just in case. It's nice not having to replace it on a regular basis and they themselves are decently cheap so I'd say go for it.

 

I've run K&N filters on everything I've owned (in the absence of CAIs) over the past 10 years - no problems. The nicest convenience is the replacement / cleaning interval. No complaints.

 

On sportbikes in most cases the K&N filters actually hurt the performance of the bike due to turbulence introduced by the higher airflow.

I actually wrote an article on the subject a few years back after doing a great deal of testing over a period of several years.

http://www.rc51.org/airfilt.htm


Back in the world of 4 wheels the K&N filter on my 04 Heritage didn't do anything other than make the transmission shift a little bit clunky. I thought it was merely placebo effect at first, but after doing several swaps back to OEM & having a co-worker drive the truck for a second opinion we both decided quite clearly that the K&N did influence the shift points for some reason. Haven't bothered to try it on my 09

 

^ I Would never guessed that. Interesting.

 

LD,-Do you know why that is ? - MAF contamination. As follows - MAF/TPS/Trans/(shift points). That's one way of telling when the MAF is getting compromised. Under normal acceleration, first can drag out finally finding second with third right on top of that. Third was to early , so you'll have to find second again lol. Yea, that's the MAF and what the K&N did for me. It didn't matter how I oiled it and of course I kept it on the light side. That made no difference, - Maf would still get oily/dirty again, after awhile.