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kn air filter

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What is the going price for a kn air filter and were is the best place to get one. Barry***

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2500 2001 loaded except leather all stock 354rear end 4x2
 
I think I payed $45 for it at auto zone,I thought it was great until I found out it was letting dirt through the filter,some guys like the K&N and so did I until I could see dirt on the other side of the filter and I did everything they said to combat this problem but it still did this,when I called K&N they said they don't recommend using this filter with a turbo,so I switched to the amsoil filter which is a reusable filter allows the same amount of air but keeps the dirt from getting through,as far as I can tell it is a better filter.

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Dave Foster:
2000 3500,Light Driftwood,Quad cab
4x4,4:10 gears,Westach Gauges,K&N,Auto with DTT VB and TC,DD1 injectors and Boost Module,Van Aakens,Muffler and Resinator removed,Amsoiled front to back.
Member of the GLTDR.
 
i'll sell you my K&N for $40 shipped in it's original box with only less than 10kmi. cleaned off some dirt off the turbo this weekend. some people swear by them... i'll try something else even if i go back to stock. e-m me at americana@prodigy.net

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regards,

peter
1998 24v 4x4 QC, SLT, Sport, Leather, Linex, snug lid, center line wheels, Smittybilt side steps,color matched fender flares, stull grills, tow hooks----first diesel, dodge etc. i'm in love!

FREE CARL!!
 
Barry, How about a pay it forward? You pay shipping,I'll send it to ya. My air cleaner box hasn't been in for a couple of years.
Email me off site if your interseted.
RichR
 
Hey americana thanks for the offer but i think i am going to stay away from the kn air filter and go with the amsoil air filter. Barry***

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2500 2001 loaded except leather all stock 354rear end 4x2
 
I havent had 1 spec of dirt come in mine yet and i have put 28k miles on my truck in the last 9 months, im very happy with its performance.

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2001 QuadCab,SWB,Auto, 4X4,4" Flowmaster Exhaust, Bosch 275 Injectors, K&N, 33" BFG AT'S... ... .....
 
Not everyone has had a bad experience with the K&N. I for one had no problems, no dirt, nothing. Mine is staying on, thank you.

Fred

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Fred Swanson
Co-Owner
Canyon State Components, LLC
www.canyonstatecomponents.com


'00 QC,SB,4x4,Auto,3. 54 w/LSD,Trailer Package,Tow Package,DTT's
TC(91%)&VB(80psi),DD2's,EZ,HOT PE,K&N RE-0880,Cummins RED Valve Cover
 
I have KN filters in almost every vehicle. Dirt bikes get lots of dirt thrown at them. KN is one of the few filters that will trap the fine dust AND keep out water too. It is also one of the few oiled type filters that won't dry out. The oiled foam filters will pass dirt after they reach capacity and will pass water. Paper filters are just fine screens to keep out the birds.

One of the biggest issues with KN and any filter is to get it sealing on the edges. Some KN applications just don't fit with out some work with a razor. This is on some of the more rare applications.

You should apply grease to the sealing surfaces just to make sure. These filters stay in for a long time, so every bit helps.

I'm not familiar with Amsoil filters. What type are they?

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Dave Zuber, 91 Dodge 250, Cummins, 3sp Auto, 4x4. Triumph Tiger, XR400, XR650L
Triumph Tiger, XR650L, XR400, Hodaka Dirt Squirt.
 
In reply to: I called K&N they said they don't recommend using this filter with a turbo... .

That is total crap! Whoever at K&N told this needs to be fired! I have been using K&Ns for years on everything from ATVs to race cars. See my turbocharged race car and you will find a big 14" K&N attached to the end of it. I've heard of some problems on some of our diesels using K&Ns, but I think 99. 9% are due to inproper sealing of the filter to the airbox and/or inproper installation. Mine's a keeper!

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Will - -- email address removed -- - 98. 5 3500, black, 24v, auto, 4. 10, fold-away gooseneck hitch, Poweredge EZ w/ boost elbow, K&N Filter, Isspro 50# Boost, EGT (pre-turbo), transmission Temp gauges mounted on A-pillar, & more to come!
38ft United Expressline X-Treme Race Car Hauler weighing in @ 12000# loaded
Other Bad Habit:
'87 Pro-Street Buick Grand National, 272cid Stage II Buick V-6, SINGLE turbo, 1400hp, 1200ft/lbs @ 24# boost
Best 60ft: 1. 11
Best 1/8 mile: 4. 99 @ 142mph
Best 1/4 mile: 7. 70 @ 179mph
And Lookin' For More!!!
So I'm A Turbo Man!
Boost On!
 
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I called K&N today to ask if they actually say that there filters should not be used on a Turbo diesel and the guy responded with "Why would make a stock replacement filter for the Turbo Diesel Ram if we advised against using them?". He said whoever told me that did not hear it from them. I have friends who have been using them on there Cummins Rams, Grand Nationals and a twin turbo 3000gt and have NEVER had any problems. The only problem i have ever heard on using a K&N on a turbo is the issue with the intercooler being coated with oil over time (like 3 or 4 years time) Which can act to decrease intake air cooling). but honestly, i think that problem started because alot of people over oil there K&N's. For one, i have seen people who oil there K&N's as soon as they get them not realising it is already oiled. My friend has a Grand National which has had a K&N filter in it for about 90 thousand miles with no problems. All the inlet pipes are clean. And if the intercooler problem is a concern to ISB owners, there is a simple solution. Every year or so (every two years is fine) unbolt the intercooler and pour some cleaning solvent throught it and it will be good as new if not better. This is a pretty simple task. But I would not even bother with that. My estimate would be that by the time an overoiled K&N filter had coated enough of the intercooler to cause a problem with inlet temps you would have well over 200k miles. At that rate you would have most definatley changed the turbo at LEAST one time. And as i am sure you know, anytime you have a catstrophic turbo chargeer failure you would want to clean the intercooler anyhow.
K&N has been around a LONG time. and they are used on lots of turbocharged applications. My Dodge dealer even sells the stock replacement K&N. If they were bad to use and wrecked engines, i am quite sure they would be out of buissness long ago. The only time i would NOT use a K&N without a foam pre-filter sleeve is if i was driving off road in dusty conditions for long periods. Otherwise, the RE-0880 filter is the way to go. A stock airbox will NEVER give you the acceleration the 0880 filter will and with the Psychotty setup (Or the aluminum version) you cant beat it.
 
K&N : Some say yes some say no. Hopefully all who really care about their Cummins will run regular oil checks to be sure of the facts. If they choose to run a K&N they will learn to seal the lip with grease.

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Steve in Spokane,01 4x4 Auto Quad Cab SB, NRA Life Member, 99- H-D FLHRCI Coalbalt Blue,00 XR650R Power Upped, Former PSD owner
 
I think the main reason some folks have problems with the K&N is over-servicing and peeking. Every time you open the air box needlessly you risk the seal not sealing completely. Every time you clean it you risk damaging the gauze. I have about 110k on my airbox K&N, the airbox has been opened twice for service, it probably only needed to be done once. Wait for the filter minder to move. Remove the air tube from the turbo when you change the oil filter, give it the white glove wipe to see if the filter is doing it's job, don't go opening the airbox. My tractors have warning decals on the airfilter that say that to open the filter before the warning light comes on is counter-productive, I feel it is good advice.

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95' 25004X4,AT,Driftwood,Banks Stinger,Warn fender flairs and running boards(work truck)
95 3500,5 speed 3:54,BD E-brake,Driftwood,Banks&Psycotty,34,000 GCVW apple and tractor hauler(works harder truck)
 
How much of the oil residue in the aftercooler is from the filter, (Not) and how much is seepage from the oil seal behind the compressor wheel? This seepage isn't visible just looking into the turbo at the compressor wheel. 100,000 RPM shaft speed and not one drop of oil weeps thru. I don't think so.
*** Could someone please find and post what the Cummins/Holset REPLACEMENT criteria is for oil misting from the compressor side of the turbo? I used to know for the older NT855's - but I do good now to remember my own birthday and phone number.
 
I believe that any dirt getting past the K&N is from the poor clamping of the air box to seal. .

On my truck I bought the smallest vacuum line I could find (1/8" ?) and then with a razor knife cut it lengthwise in half. Wiped the raised lip in the lower airbox with cleaner and then glued the split half hose open side down with weather strip adhesive.

Now I have to fight the cover on alittle. . It is a tight seal. . No messy grease piled up on the filter seal and 40,000 miles later my turbo is clean and the intake hose is cleaner the windows in my truck. (inside)

A very small / thin piece of hose makes a big difference. Maybe a 1/4" X 1/8" tall rubberized weather strip would work and it would be easier than cutting the hose.

Did I mention that I live on a dirt and sand street in the middle of a 85% unpaved city of 35,000 people. I am in the sonoran desert and lucky to get 2 or 3" of rain a year. (can you say DUST, DIRT, BLOWING SAND!!!)

Sorry for the lenghty post. . I just suprised by the amount of problems people have had with such a great filter... K&N should figure this out and make the filter seal thicker. I can not believe the practice of piling up grease to seal the filter is a correct fix.



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"Have you driven OVER a phord lately"
2001 2500 BRT WHT SPORT QUADCAB 4X4 ETH 3. 54LSD TRLR CMPR PKG ALL OPT XCPT LTHR
 
Thanks for all your replies now you got me leaning towards the kn filter again as long as i put it in there right i should have no problem all i use the truck for is towing it, has never seen a dirt road yet.

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2500 2001 loaded except leather all stock 354rear end 4x2
 
while we're on the subject, i understand that the amsoil filter has the same foam element that the stock filters have. im sure that the foam traps smaller particles, but it seems to me that the foam would have to be cleaned, or even replaced like foam pre filters on ag equip. the first thing i do with all of our new trucks, whether gas or diesel is take off the stock filter and replace it with a kn. like the man said, if they didnt work they wouldnt be so popular. i like to hear my trucks breathe. oh, by the way, we had three v-10's that actually sucked the foam liner off the filter and into the airbox outlet. talk about being choked for power... ...
 
The guys that say they are getting dirt in are using the replacement filter. The cause of the leak would be a bad seal (airbox).
The way to be sure to get a good seal is to throw away the air box completely and install a K&N re-0880 and a 25-0880 prefilter. It is not possible for the seal to leak this way. The cost is about $80 but you will never buy another air filter so it is still cheaper in the long run. You will need about a 1" piece of 4" exhaust pipe to use in the connection at the hose. I cut mine off the end of my tailpipe since I have a 5" tip.
Good luck,

Scott

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'01 3500 qc 5sp, 4x4 white w/ green graphics dark tint, flaps,K&N 0880 and pre filter,auto meter ultra lite boost & egt in 3 guage pillar,strait piped, tonneau,painless, Uniden Grant LT w/3' glass K-40,aux. back up lights,
'91 Regal 260 at Dale Hollow
 
K&N has been on for 54,000 no dust any where ever. Lets the turbo sing.

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98. 5 SLT Q/C L/B intense blue loaded 3. 54 5 speed straight exhaust,isspro boost egt dual pillar, bullydog stage II injectors NRA MEMBER
 
My 'K&N equipped stock box' turbo blades are very clean, and I also agree with BowHunter [Are you really Ted Nugent? #ad
] that the turbo really 'sings' with a 'K&N' air filter. No need to remove the silencer ring!

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Y2K Awesome Black LB 3500 QC SLT, 24Valve ETC ISB, 4x4, 4:10 LSD, DTT Custom prepared Auto transmission VB, Power Edge 'EZ', DD2's, K&N, Polished Stull Billet Grill/Fog inserts, Chrome Smitty-Built Step Rails, Mopar Chrome-Tipped Mud Flaps, A-Pillar mounted West-Tach Turbo/Pyro/Trans Temp gauges, Rancho 9000's, Diamond Plated Tool Box, + a bunch of other stuff. Fact:The First Fords' had 'DODGE' Engines! The new PSD's need them!
 
Hey i didnt mean to get anything started about what they told me at K&N but thats what he said to me,that they did not recommend using the K&N filter with a turbo charger,but I thought the same thing why build one for this truck,but anyway I will try the amsoil and see how it works out and if I dont like it I may switch back,my box seems to be ok,but I may have missed something with the install of the K&N. The guy that put in my injectors saw the dirt and oil on the finns and in the tube,but the oil may have been that I over oiled it,not sure,but sorry for getting this started,I just replyed to his post the way I saw it and by what I was told at K&N.

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Dave Foster:
2000 3500,Light Driftwood,Quad cab
4x4,4:10 gears,Westach Gauges,K&N,Auto with DTT VB and TC,DD1 injectors and Boost Module,Van Aakens,Muffler and Resinator removed,Amsoiled front to back.
Member of the GLTDR.
 
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