Hi Im lookn for a peformance air intake for a 93 Ford F150 w/ 351cid/5.8L fuel injected V8

Look in summit racing, jegs, ...  

k&n is popular and they make one for your truck should  be around 219 dollars or so i think  

K&N is a waste of money. They actually filter the air less for a marginal improvement in airflow. The performance gain from them is more a state of mind than reality over a good clean stock filter. Your money could be a lot better spent and why you would want less filtering off road in beyond me.

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They flow more air, that is not debatable, so therefore they do offer some performance gain. THe particle they let in is not enough to harm the egnine, or they wouldn't be in business. There are some applications where they are dangerous to use, like in diesels. The major benefit between them and other aftermarket filters to paper is that they are washable.  

You are mistaken. The amount of air flow boost they have is very marginal and the performance gain from it is even more questionable. THey are "in bussiness" because people want to believe that there is a silver bullet to boost engine power and MPG, even if it does not exist. ALso on the particle size, at what point do you diecide what is a acceptable particle size the grit your engine with??? Any extra grit is too much and they more (not less) you remove the better and to think otherwise is foolish and not based on fact.

Everyone is entitled to their own opinion.

I have run K&N's in all my trucks, and they perform better for me. They do flow more air, and I have found when properly oiled they trap more dirt.

I would never go back to a paper element, but I also think the new dry-flow synthetic filters look pretty promising.

K&N is more a state of mind than anything. If you keep your stock filter clean they will do fine. K&N past the grit that stock one pass so they plug up slower than stock ones. If you want to sandblast you engine internally a little faster more power too you but more than one tester has proved that they do not filter as well. Now if they filtered as well or better that would be different but they do not and given the grit that is present in a offroad invironmentment, you what more filtering not less. Less is not better here.

So how do yuo exlpain the dyno gains, can you really argue with numbers. Sand blasting might be a little extreme, dont you think? The only place that that extra grit is a real problem is for diesels with a turbo.  

Snoman, you need to get you head out of your ass. K&N makes an excellent air filter system. Everytime I read something that has your name in it you always have something negative to say about it.

Temper temper! Being that most do not drive with their foot in the floor all the time, a few HP on dyno means little and nothing to me. To me a "4x4" can operate in any environment and protect its engine which a K&N will not if longest possible engine life is wanted. ALso the after market airbox mods that might gain a few extra HP on dyno do so at the expense of filtration and make it easier for engine to injest water splashes too. Not for me. If you really want a power boost and a first class sleeper, install a supercharger with a good air filteration system (not K&N) and also uses a high flow single exhaust (3 to 3 1/2 inch exhaust) on a SB Ford, Dodge or Chevy and you will embarass thoses that spend a fortune on K&N's, CAT back duals and "Chip" tunes and such. BTW, if you are that impressed by dyno gains with K&N then use no airfilter at all and save your money. Sure there will be no filtration at all but then there will be no illusions either about the air being propery filtered and your engine properly protected too like there are with K&N kits

Haha, that whole visit...@... is funnier then hell. Quit pimping your site snoman, you just link to info that can be found elsewhere. K&n's dont filter as well as paper filters, but they offer other advantages and do a suffiecient job of filtering.  

I thought you might get a kick out of the recent post that I made. I was just trying to defend what you were saying. He's right in one way about the K&N not filtering as good as a paper filter, but as for performance gains I would take this filter anyday over a paper element. When I first put a K&N in my truck the difference was like night and day. I also removed the air baffle or what ever you call it from the air box, this made a big difference also. I can now go up most hills in overdrive. Before I had to gear down to fourth and sometimes third gear. I need everything I can get for my little V-6.  

Perhaps you should read the results of a independant ISO 5011 of air filters for a Dmax conducted in 2004. The K&N did poorly and basically placed last and passed the most grit by a very wide margin. Do not take my word for it, see link below. Believing that they are protecting you engine does not make it happen but there are those that believe in "magic bullets".

http://forum.snoman.com/viewforum.php?f=57

I don't always believe in something just because of the so called tests. Anybody can write anything they want to just to say that there product is better than anybody elses. Look at all those infomercials that they have on TV. There is one that I know of, don't recall the product name,but they have their so called formula that they say bonds to engine parts so there is no engine friction. They have the engine running with the valve covers off and the oil pan off and they are hosing it down with a fire hose and the engine keeps on running. This right here is just a setup, there is no way an engine without oil, being sprayed down with water with their so called friction modifier in it could survive a test like this. But since this was an actual test this is something that you would most likely believe in.