i hear a lot of talk about these filters on the forum and before i found out the qwik filter i had paid like 200.00 for an air raid intake and i am hoping that you guys dont think an air-raid is a hoorible filter and that i need to sell it and get something else - but i want your thoughts - is the air raid a GOOD ENOUGH filter that it wont hurt my truck or performance??
thanks

 

What kind of filtering element is it? Oiled cotton gauze isn't
the best.

 

it looks like a k&n so i think you do have to oil it but mine has only been there for about 11,000 miles and if so whats the deal with the oiled kind??

 

The only aftermarket system for extreme air flow and great filtering i would go for is the AFE w/ Proguard filter media.
This i've seen independent test results on.
Nut

 

so is the air raid hurting and should i switch to a qwik filter for the $$$ or what
thanks

 

i went to look at afe filters and they are oiled cotton???

 

Did u see the ones with the Proguard media?

 

I don't know anything on the specs. on the Air Raid. Do u? Seen independent tests done on it? Things to consider.
Nut

 

Kwik filter uses a Napa 6637, which is a paper element and eliminates the leak-prone, stock airbox. The entire mod can be done for $50 or so.

Tymar - uses a Donaldson filter, but I believe the 6637 will also work. Eliminates the leak-prone stock airbox and replaces the snorkel and plastic battery holder with a stock, early 99 metal battery holder. The mod costs about $175, is cleaner and more 'finished' looking than a Kwik, but functions about the same.

Ask Kwik - he brought the Kwik mod to prominence here, then switched to AIS. He can make a first hand comparison between the two types.

 

I just returned last week from vacation pulling the trailer using the new AIS filter. It pretty much eliminated the intake drone that I was hearing with the 6637. The 6637 does a GREAT job of filtering, it will flow more air than the engine could ever hope to use.
The reason that I switch to the AIS is I wanted to quiet things down and it did that very well.
An added benefit is the AIS is touted to flow more air due to an advance filter media design that flows a lot more than a different air filter that takes up the same amount of space and at the same time provides superior filtering.
I chose not to install the foam sleeve and am glad that I did not. I was able to get boost readings like this and still not have the filter minder move even 1 mm.



This much boost and EGT made me very nervous for my turbo bearings and the rest of the engine as well and have since restored the wastegate settings to stock. I'm going out on another vacation tomorrow and am hoping to limit the boost to 23psi or so.

 

One more thing, I can still hear the turbo spooling up just fine, it's just kind of muffled now. To me it's perfect.

 

Kwik, I think a lot of that turbo noise is probably coming from the REAR of the truck.... I know mine is!

 

Wow! Ragged edge on that turbo!

 

Yes. WAY too much boost. I've reset it to stock since that picture. I'm worried about it now. It makes a sort of crickety sound at idle out of the tail pipe now. I'm hoping I didn't fry the thrust bearing on it.

 

Ow. Hope not