K&N drop-in air filter, WORTH IT?

[tidus1203]

CAI hehehe di naman ako ganun ka-hardcore the Yaris is afterall my econobox, my daily transport to work from home and back... My main issue pa rin is #1 FUEL ECONOMY and #2 ECONOMICS (as against OEM filters) yun lang. HP gains are just consequential and a bonus and I am not after that...

[Dieseldude]

A good air filter prevents damaging solid particles from entering the engine without restricting air intake volume.

The engine manufacturer determines the maximum allowable size of solid particles admitted by the engine, and controls it by using the correct filter media (micron size of the filter paper's porosity).

The engine manufacturer also knows the engine's air volume requirements at full load and speed. Allowable air intake volume depends on the total porosity of the filter media, which normally equals the throat diameter of the intake plumbing. The larger the area of the filter media...., equals more air...., better for the engine.

In time, the air filter is blocked by dust, the engine receives less air, resulting in low power and high fuel consumption. Power and fuel consumption greatly improve when a blocked air filter is replaced with a new one.

Nothing will beat an OEM air filter as it is tailored to fit it's specific engine application.

[tidus1203]

Thanks dieseldude mukang honest to goodnest naman yung explanation mo... Sige na nga wag na lang ako kukuha kasi since fuel; economy naman #1 factor ko and mukang di naman makakatulong in that regard!

Again thanks to all the replies... Mukang back to Denso Toyota air filters na uli...

[duskylim]

Dear Sirs:

It just so happens that my Mazda B2500 has a branch off the main filter to a sort of resonance chamber.

I dismantled it out of curiosity and found that it had no opening to the outside.

I decided to install an auxiliary air filter from a smaller car onto the branch rather than return the original resonance box.

After doing so, I found that not only did my WL-31 diesel smoke less, but it gave me better fuel economy and slightly better response in the low and mid-range.

I spent a total of Php 1000 extra to attach the filter, including parts to attach it to the branch in the air inlet hose.

The extra air filter also extends the period between the times I have to clean the original main air filter - together it takes longer for any one filter to get dirty.

I thoroughly recommend this to anyone BEFORE they try the K&N route.

Best Regards,

Dusky Lim

[XTO]

Remember, not all OEMs are better than aftermarkets Really depends on the need and requirements.

[jjmd3_787]

Not worth it in my opinion. Those filters are expensive (but lasts longer than stock though) and requires oiling from time to time, too much oil and you risk fouling up your MAF sensor resulting in costly repairs. I'd stick to the stock filter, very easy to clean (using pressurized air) and not that expensive to replace if needed.

100% true. Para sa akin e vanity na lang ang mga yan. Been there, done that . . . my verdict is :thumbdown:

[hominid]

Wag na nga lang. Lalo na for a Getz 1.1 na wala namang improvement sa power. See my experience: http://tsikot.yehey.com/forums/showt...03#post1509003

[nytmair_33]

Hi guys,

I was offered a brand new K&N air filter for 4.8k. my car is a 2003 nissan exalta DS. is it really worth it? thanks guys.

[iceman_uel]

thank you for this thread, wanting to buy na sana K&N filter for fuel economy sana.

[jamaring]

K&N Recharger Kit

sir XTO how much po ba k & n filter for monty 2010 GLS including cleaning kit.

[yourman_2nd]

I just had the MAF Sensor of my xtrail replaced and throttle body cleaned due to loss of power at high revs. My xtrail cant go beyond 60 kph even if i floor it. verdict of casa: my K&N Drop in filter. had it installed for the past 7 years and the MAF and throttle body has to be cleaned 2x already and this time, the MAF sensor has to be replaced to the tune of 5K+. now my xtrail is back to OEM air filter and i didnt feel any loss of power. my advice, stick with OEM airfilter.

[Ry_Tower]

sir XTO how much po ba k & n filter for monty 2010 GLS including cleaning kit.

Oo nga, meron ka pa ba nito sir XTO?

[vinj]

I just had the MAF Sensor of my xtrail replaced and throttle body cleaned due to loss of power at high revs. My xtrail cant go beyond 60 kph even if i floor it. verdict of casa: my K&N Drop in filter. had it installed for the past 7 years and the MAF and throttle body has to be cleaned 2x already and this time, the MAF sensor has to be replaced to the tune of 5K+. now my xtrail is back to OEM air filter and i didnt feel any loss of power. my advice, stick with OEM airfilter.

IMO, even on the stock filter it would still be the same problem most likely as the years go by and mileage goes up. If the Xtrail engine is as finicky as the QG on the N16 Sentra (2001-up), the MAF sensor would need cleaning every so often to keep its air flow readings consistent and to have power at the high rpm range, even if you're using a stock air cleaner. Cleaning the MAF is a pretty straightforward item as long as you have the proper hex wrench/screwdriver and some electric contact cleaner.

[gtamp]

Dear Sirs:

It just so happens that my Mazda B2500 has a branch off the main filter to a sort of resonance chamber.

I dismantled it out of curiosity and found that it had no opening to the outside.

I decided to install an auxiliary air filter from a smaller car onto the branch rather than return the original resonance box.

After doing so, I found that not only did my WL-31 diesel smoke less, but it gave me better fuel economy and slightly better response in the low and mid-range.

I spent a total of Php 1000 extra to attach the filter, including parts to attach it to the branch in the air inlet hose.

The extra air filter also extends the period between the times I have to clean the original main air filter - together it takes longer for any one filter to get dirty.

I thoroughly recommend this to anyone BEFORE they try the K&N route.

Best Regards,

Dusky Lim

pede po ba ito sa kia pregio..meron din kase resonance chamber sa pregio ko :-)

[niky]

pede po ba ito sa kia pregio..meron din kase resonance chamber sa pregio ko :-)

As long as there is no sensor between the main filter and the resonance chamber, no problem. ;)

[tuazon7]

Been hearing quite often that using K&N drop-in air filter will eventually foul-up the MAF then the turbo later. But K&N disproved this thru there studies, they even have a video on their site about this. But confused really as been in Berrima the other day and they ask me to have the OEM air filter back. K&N is not suited for CRDI, so they say. Something to consider? TIA.

[niky]

Panel or cone? Cones typically don't do anything for CRDIs due to the MAP sensor.

[tuazon7]

Panel or cone? Cones typically don't do anything for CRDIs due to the MAP sensor.

Panel drop-in. Contemplating now to have the OEM air filter if this is true. Way expensive ang MAF and turbo. Is that something true sir niky?

[dvldoc]

If you have a diesel don't expect your MAF to last past 75000klm without a oil catch can, Your crank case breather is dumping way more junk on your MAF than a K&N ever will. Your actually supposed to clean your MAF at the same interval as your normal air filter changes are supposed to be.

[niky]

Heck, that's similar to what we see with local gasoline engines with MAF sensors, too. Tuning goes way out of whack and fuel economy goes down the drain after just 60-80k kms unless you clean the MAF.