Drop-in K&N filters - a waste of time/money?
 

I'd like opinions on the following question. Given that there are no CAIs on the market yet for the 370, does it make sense to replace the paper air filters with K&Ns for the time being? Or is it a waste of money that won't really make any difference?

You do know that the stock intake is a cold air intake already. CAI's have proven to lose power on the 350/G35. I dont know what they do for the G37.

on the HR 350z motor the drop ins were good for about 4hp on the dyno in my buddies car ive got them in my GTR and someone recently dynoed them on a GTR and saw no real gains

but regardless of gains you are getting more airflow and they last a long time even without reoiling them

so they arnt a waste i dont think

They should be good for some very mild gains. The stock intakes flow fairly well and you won't likely see decent gains until you uncork the exhaust if the G37 is any indication. Nissan is leaving less and less on the table for the aftermarket. I will be saving my money for a true dual exhaust system with high flow cats, then a flash and then intakes. The sound gained from open element intakes on the G37 is incredible.

Thanks for the input, guys. I went ahead and ordered a couple.

How much??

the Injen ones really Failed for the G37.... the Stillen G3 Intakes will produce some power......... i would say within 3 months it will be released...that's just my guess :hello:

Ah ****, I have a k&n filter here at the shop... lol.
If you guys need any auto parts I can get it cause my dad get's hooked up from places.
K&N Filters are the best. :P

$127.18 for the pair, incl sales tax (6%). I just called the local Autozone and they said they'll have them by tomorrow.

Really? I thought that the Injens did well on the HR. I guess the vvel on the vhr is so finely tuned that aftermarket companies need to really put out a product that can actually deliver. I do have high hopes for the stillen. Also I hope short rams can make power as well like those from JWT. I know that most intakes dont make much power...we all just get them for the noise:tup:

Cool, let us know what you think after you've run them for a week or two.

ya the only intake to make power so far for the HR with out a tune is the stillen gen 3 long tube intake. But inen is coming out whit another try

^ Do u think the VVEL on the VHR's do anything to the ECU when adding aftermarket intakes on the car? I mean that could cause a drop in hp from what people are seeing right?

Here they are for $83.90 a pair :tup:

K&N Performance Air Filter, 07-09 350Z/370Z - The Z Store, your Datsun & Nissan Z & ZX source!

No... CIA will not affect that. The air intake temperature sensor comes after the filters. Meaning, the temperature of the air will not mess with the computer. It would be no different than going from cold weather to hot weather. The AIT senors will adjust accordingly.

K&Ns are a waste of money, IMO. If you're going for track use, you MAY get 1/100th of second better times, but they won't be as consistent. I got more consistent times with paper filters than I did with the K&N. Also, they're REALLY made for off-road use.

Not all oil-based filters are good.

The Stillen gen 3's were producing a good 16-18 hp on various cars. I think these would be a great addition.

Those are Stillens claims. I dont think any intake setup will add 16hp. If we are lucky we will get maximum 5-7whp.

I did a search and found these, you guys be the judge!

Whats your thoughts on Stillen Intakes? - ChicagoZ.com- A Forum for Everything Nissan Z, 350z, 370z, Infiniti G35, G37, GTR, and MORE!

Review Stillen CAI Generation 3 Thoughts, Dyno, and Vid with Berk HFC & FI Carbon Exhaust - MyG37

Nope! Independent test.

Here is one: MyG37 - View Single Post - Review Stillen 3G Intake Review + Dyno

I'll keep my eye out for me.

In for an opinion after install.

Haven't really driven it enough since install to form much of an opinion. Initial impression is that throttle response is slightly improved. Nothing earth shattering though, not that I was expecting any huge difference. This might sound stupid, but for me, this was more a matter of principle than an expectation of real gains -- I just don't like paper filters!

Pictures plz!

Will look stock dude. Its stock air box with a drop in filter. Go look at a stock motor, there's your picture.

I had a drop in on my 350z before I got an AEM CAI. I liked it.

Intakes wont be any noticeable power though, just gives a louder growl out of the engine.

I should have probably phrased my original question about whether or not it'd be a 'waste of money' a little better. I know that we get better airflow through a K&N vs. paper filters, so from that basic standpoint it's not a waste of money. What I was really trying to work through in my head, however, is how far off we are from getting a good CAI from, say, Stillen on the market. Because if we only need to wait a month or so before they release one, then it'd be a waste of money to spend $100+ on drop-in K&Ns only to take them out just a few weeks later, not to mention spending another $400+ on the CAI. On the other hand, if it's going to be like 6 months before a decent CAI will be released, then it makes more sense to go ahead and get the K&Ns. Of course, I'm guessing that none of us are clairvoyant about future release dates on this stuff, so ultimately there's no way to answer this question objectively anyway.

Well... If I had my Z now, I would get the K&N's. I would not settle on a CAI until we have a bit more tangible gains that are dyno proven. Just because the Stillen made power on the G37 doesn't mean it will make power on the Z.

Just my thinking...

of they dyno results? i dont have any wasnt my car.. the guy got it dynoed at national speed a sponsor on mygtr... i just know he called me and told me they ran it 3 times and it was about 4hp to the wheels over baseline every single time

^^^ LOL! That would be just enough to make up for the weight of the bubble gum you're chewing! :D

+1 Agreed. If i had my 370z now, I would keep the stock intake until there is a proven setup that works well. Everyone thought that CAI's would produce power on the 350z and most of them showed no gains and even lost power so that turned me in the other direction of going with a CAI setup. Now I have the pop charger which gives a great sound and I picked up 4whp from it. Ill just wait until there are more intake setups for the Z and people will have their car tuned with real world results.

cold air intake

This is probably the closest thing to an "intake" modification I would go. I recently switched from the JWT pop charger to the stock airbox, and I notice a heck of a difference with my car. It really hauls now. I just open it up a bit and I start to lose traction!

Dig- What else do you have done to your current car?