I heard somewhere that there are Air filters that can add some 10 -15 HP to the Xterra. Is there any truth to this?

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Yes, and the fabled "Type R" sticker is worth another 5-10hp... ;>

Naw, seriously. Get yourself a K&N filter and you'll forever be thankful. It's much more efficient, especially so when it's dirty - as compared to a stock paper filter. It'll filter out a lot more stuff, last a lot longer - and yes, increase horsepower and mileage.

But it certainly won't add 10-15hp! More like less than 5hp. It should increase your gas mileage ever so slightly as well.

Again, it's more efficient, and all-around better than the stock filter. It'll also last forever.

P.S. See also: "search function"

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You must not have put the K&N sticker on the back of the truck...that itself have me about10 hp.

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Joe
No Officer, I'm not naked. I'm wearing my Xterra.

Ahhh, you're right - I knew I was missing something!

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I heard that fuel economy actually suffers when you add the K&N. Maybe that was the pop charger. :}

scoot

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"There appears to be a loose nut on the keyboard!"

I wasn't going to say anything till I'd gone thru 3 tanks of gas, but the K&N does seem to be working. I've been getting at least an extra 1.5/mpg since I've installed it. I know that might not seem like a lot, but when it'd been at 16/mpg, every little bit helps!

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2001 XE-3pk Auto
Just Blue 4x4

There's something wrong in the analysis, then - because replacing the stock filter with a K&N improves mileage, if anything. Granted, like I said - you won't see dramatic changes, but they are there.

The other day I did a good mix of highway and local driving, with the A/C on 75% or more of the time, with two passengers (three people total). The tires were set to 34psi (a touch too high, IMO - go for 32). On the highway I drove anywhere from 65-80mph and I got exactly 17mpg. A couple of times I romped on 'er to show it off to the passengers (my parents). If I took off my BigPowderHound I think I could've gotten even a little more.

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Thanks for the follow up BP.

scoot

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"There appears to be a loose nut on the keyboard!"

What kind of air filter is this? Where can i get one.

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Richard Ross

It's a K&N Filter, available from xterrastore.com or xterraparts.com. They have a size made for the Xterra. When you install it, keep in mind that you won't need the foam glue-on strips that come in the box.

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The hp gain is proportional. 10-15 hp might be seen in an engine that already puts out a lot of power, but not on an X.

There is no such thing as cheap (tangible) horsepower.

Brent

You guys are great! I like this board because everyone is helpful and honest. thanks for the advice I will get one right away, it sad that I feel like I should have to replace a filter (nissan) with only 100 miles on the car (yes I already put that much one and it hasn't been a week yet). Not to start up anything else but whats this talk about adding an exaust to get more power. Just kidding!! I read all kinds of stuff on here and other places that makes me wonder how much truth is to anything. All I know is I love my car, but the gas mileage and power do kind of lack. Now I know where the money I saved buying the car is going to go. GAS!!!!! Seems like just to take it on the long trips I might have to add in the price of the frequent fillups. Go any where, spend any amount on gas that should be the slogan for the X.

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Don't fret too much, it's quite normal in most vehicles to upgrade to K&N, even on Porsches. If all the parts in the X were upgraded, like a stock filter to K&N, they'd be more expensive!

Please post your impressions when you get it.

mikeT



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2001 SE 4X4
Rain+Dirt!

Thats alright BP, you a FNG, how would you have known.

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Joe
No Officer, I'm not naked. I'm wearing my Xterra.

Not to beat a dead horse, but the performance gain with K&N is way debatable. I took my K&N out of my Frontier and never did put one in my X when I got it. I think my mileage actually got worse and my idle speed was always way too high. I had to step on the brake hard to keep the truck from moving when I was stopped at a light. Took the K&N out and everything was back to normal. I like the re-useability of the K&N, but without an aftermarket exhaust, the performance gain is more imaginary than anything. All just my .02 cents.....and some pocket lint to boot.

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01 SE 4x4
Silver Ice

Well, I have two K&Ns in my race car, and one in the Xterra. It works for me - mileage, performance, longevity and effiency are all up. It's just a better filter.

But hey, to each his own!

Shaddup, Joe.

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whats the best price on the K&N filter out there? Where?

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I was able to locate the filter locally for 2000 Xterra but none for the 2001. It should fit the 2001 fine right?

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Yep, no change between '00 and '01.

Pep Boys has 'em for under $50. I've seen about $36 online, but after shipping it's pretty much a wash.

Brent

I got mine for $45 at Pep Boys and it is the same filter as the 2000 Xterra and Fronteer uses.

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Joe
No Officer, I'm not naked. I'm wearing my Xterra.

not to keep this thread going longer than necessary, but I got mine at Pep Boys and it was right at $45 as well. I've got nothing but good things to say about them.

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Sherm near Cincinnati
2000 Silver Ice XE V6 4x4

I saw one at Auto Zone today for $39.85 ...

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Pepper Kay
'01 XE 3 pack 4x4
auto - SWXC #39
Alpine Green

has anybody tried the JWT Pop-Charger from xterraparts.com and if so, does it work better or worse than just replacing the K&N air filter? Are there better solutions out there for air induction systems?

Does it really matter about getting a different exhaust like the cat-back exhaust?

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[This message has been edited by amfemc (edited 04-26-2001).]

SEARCH!

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01SE 6cyl 5spd SolrYelow

Ok got mine yesterday at local AUTOZONE for $44.99. Hey Whats up with that, someone said they paid $39.00 at AUTOZONE. I feel ripped for $5.00 now! Can't wait to go put it in. Hope its all as people say. How much time shoulf I plan on, 15 min to install? Need special tools or anything?


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