Air Intakes a Scam?

[caloyski5]

i had a lot of cone type filters used in my familia. (a number of simota, KNN, and even weapon R) i found the KNN had the best filtration and performance. all of them made the growling sound at mid-high rpm and the noticeable hiss at idle to low rpm. after 5 years of buying and selling, i decided to stick to stock. not because of the lack of performance (better throttle response and breathing) and porma but because i decided to focus more on my audio system more.

[blink21me]

i had a lot of cone type filters used in my familia. (a number of simota, KNN, and even weapon R) i found the KNN had the best filtration and performance. all of them made the growling sound at mid-high rpm and the noticeable hiss at idle to low rpm. after 5 years of buying and selling, i decided to stick to stock. not because of the lack of performance (better throttle response and breathing) and porma but because i decided to focus more on my audio system more.

how were you able to prove that to yourself???

[redorange]

K&N may be the best known brand but it's not really the best because it uses a oiled filter that can damage your MAF sensor in the long run. Most people also over oil the element after they clean it causing the damage. The best ones to use would be the HKS type that doesn't require the element to be oiled.

[m_ron]

With so much traffic goin on in the philippines i think it's a waste of money unless, you want the sound of open filter.

[deedee]

if your planning on upgradin g the whole exhaust system too,go ahead and do the air filter.if not....id say its just a waste of money.even a 10HP gain cant be felt(inwhich i doubt an air filter alone can give).its just a waste of money.if your after the sound difference..go ahead and change it.(tho i have no clue why anyone would spent their money to change an engine sound without any noticable HP gain is beyond me)id rather spend my money on making my ride feel faster than sounding faster.but...its you car so its your call.

[caloyski5]

dirt build up inside the intake tube and manifold and my dyno-pwet-o-meter(hehehe). the worst was the weapon-r v2. the inside of my intake tube had 1-2 mm of dirt + i had severe idling problems.

here is a very nice comparo..

http://mkiv.com/techarticles/filters_test/2/

[verm]

mga sir, what is an air passage box? sa may bumper daw ito at pag tinanggal magiimprove ung air flow? your insights will truly be appreciated