ive been thinking about getting a K&N filter so i went to their site and it shows two different kinds for my car (02 ws6)

there is the regular filter like the one i have on my car



and then there is this




so my question is does it matter which one i use, which one is better ect.. would that second one work in my ws6 and all that.

never messed with intake so im just looking for as much info as possible,.

thanks!

I'd go with the second one because the air suction is from all directions compared to the other one. It's called a K&N FIPK performance intake. I bet it also costs more.

yea its quite a bit more, which is fine, but i didnt know if it was cool to use that with the ram air setup, or if it mattered or whatever.

also, after reading some stuff on the site, is that 2nd setup there used in place of RAM air or does it work with it?

I think it is square inches of filter that count for airflow numbers.

i looked it up awhile back for my car and on one of the offbrand sites and i think on k&n also its says its supossed to add 25 hp, which i think could be some too high... but the stock ram air adds like 15 doesnt it, so i mean it coud be the right number... i dont know if it actuallt works with the stock setup tho.. if anyone knows id like to know also.

Yes the second one will work on any 4th gen. f-body, even ram air versions. How well it may work above and beyond the OEM style flat filter with lid may be up for debate still. Reason is, the R/A hood from the factory is designed to flow air under the filter and above the upper core support in the gap. The non R/A cars have this gap too, but it is only about half the size as the gap on WS6 cars. Since the 98+ OEM ram air setup is designed to pull air from the front then under the filter, the 2nd style shown obviously will have an obstruction(the closed "cap" on the filter) that will decrease the ram air effect. However, like previously stated, square inches of filter material is what counts the most when it comes to air available to the engine.

I've never used that second style, but I have heard more than one person swear by its benefits. Fact remains either/or is better than the factory filter unless you dislike the suction sound that gets louder with any of the aftermarket's high flow filters and airboxes.

In case you're wondering and if money is no object, the best ram air setup is the 93-97 style which you can get very close to with an aftermarket hood and air filter housing. It will end up costing north of $1,000 probably, but it is a sealed unit that is the most efficient at what it does.

As usual Jon is right on the money

If it was me I would just get a lid, debaffle the hood and get some foam rubber to seal the hood to the Airbox.

Well where can one find the 93-97 R/A set up?

ill dig up a hot rod magazine i got and post the magazine date, where they tested the k/n set up on a camaro and gained 18 or 22 hp cant remember but the hp gain was a mindblowing number. made me want to buy it even though it cost 300 some bucks, but went with i lid (which is still in the parts bin) cause wife wanted to keep a stock apperance.

wow didnt see the date, didnt mean to bring back and old tread

It is ok, it happens quite often.