K&N for Outback

Did you actually try it?

If you go on the K & N site, you will notice that they make no claims to increased mileage with a filter alone.

I had one on a Dodge Dakota, and had no increase in mileage from the filter.

IMHO, it will only pay for itself if you keep the vehicle long enough to recover the initial cost in throw away replacement filters.

On a subaru? no. On several motorcycles -- yes On a drag car - yes on several race cars - yes.

The ONLY way to "improve it" is by altering the computer & exhaust as well. the computer compensates to bring everything back to "normal" (in it's eyes)

Improving intake does nothing if you do not improve the exhaust, typically an adjustment ot intake mixture is also required -- it really is a can of worms. I don't believe anyone that says "I put a k&n (or AFE) on my car and I get better throttle resonse & better millage" -- it's in their head. The same for "cold air intakes" Modern engines are SYSTEMS, everything is designed to work together -- and the brain will compensate to make it all play nice, typically to the effect of decreased performance.

Also; the K&N, unless properly maintainced (which most people do not do) will do one of two things: Let LESS air thru or MORE dust thru.

You cannot (as in normal oil changes) "clean your K&N" and "pop it back in" -- later than day? Maybe, the next day, probably -- it has to DRY completely after washing it, then you have to oil it -- most people screw up on the oiling, either too much, or too little -- or worse, oil it while it's still wet.

skip the "performance" filter...

The filter dries pretty quick - leave it in the sun. It does take a couple hours but well worth it. Yes MPG increases- Iwas getting high

i'm sooo glad i haven't bought my subaru used.

Me too. Used cars are usually a headache

better throttle response, 1 or 2 mpg more

In my case, my purchased new and fastidiously maintained Subaru has recently been quite a headache.

Not that I'm bitter.

-- Todd H.

You have to be careful using these filters on newer cars. K&N's (or any filter that must be oiled) can foul the mass airflow sensors on some cars (Audi's in particular) leading to CEL's and driveability issues. Here is another view -

Dan D

Wait a minute...you have a Subaru, AND a Honda?

Interesting.

If the thing is designed properly, it will pick up air near the same point as the OEM airbox did, and the air should be cooler than the ambient eng compartment air.

They also make a 'deflector' for most intakes that helps scoop the air from the point where it comes into the eng. comp, helping to ensure the air is at the intake is cooler than ambient. Does it work? I dunno...

A *real* Cold Air Intake, like an Iceman, routes to just under the front bumper of the car, making sure the air coming into the intake is cooler than the eng comp air.

I put an 'intake' on a Tercel, and noticed 2 things right off the bat:

Throttle response was better. We're talking about a 1.5l engine here, so

Fuel economy. This car had an AT and managed 38 MPG combined City/Highway with my style of driving (rarely under 50, and 70 on the highway). After installing the intake, *COMBINED* fuel economy settled between 44-46 MPG!!!

Considering that's what a Prius averages, I'd say that's pretty decent!

On my Tercel, it was all in my wallet...a $50 Intake raised the fuel economy from ~38 MPG to ~45MPG.

And I keep records on all my cars. I have an '85 Corolla GTS in the back yard with a black notebook documanting every fillup the car has had since I owned it, along with a computation of the mpg.

In the Teercel's case, there were 3 months of fillups at 36~38 MPG, and after the installation of the intake economy ranged 43~46 MPG.

Another interesting note: there was NO variation for Hot/Cold weather. The fuel economy remained consistant for the three years I owned the car.

Well, we just out a deposit on a '99 Impreza RS2.5. It has a cold air intake! It is actually routed out of the engine compartment into the passenger's side fender area, behind the headlight, the stock location, apparently. It's a bigger tube - the brand is Injen. Looked very spiffy.

Dan D '99 Impreza RS2.5 (son's) Central NJ USA

I see they have them for my 04 outback. A bit less than $300. I wish I knew of them when car was newer. If /i keep the car I may get one but I hope to get new vehicle next year. so who knows.

Now, your tag says...you already have one...?

If so, let us know how the one with the intake compares to the one without.

that's the whole point of s*it mods for rice kids. they won't ever call this Suck the Crud in Foul Weather intake. marketing. sheesh.

Where do you get the $50 Intake that gives you such a boost in fuel mileage? I need one.

Thanks

Hachiroku ???? wrote: