thanks a lot folks for da replies and help... js changed my air filter over the weeknd at kakimotor SUNWAY... anyways, azt if u want my opinion on the matter, if you want performance you gotta go wit K&N, less sound but the acceleration and top speed is definitely a step up when compared to open-pods (Hurricane, Aerospeed, etc.), da ride is also much smoother in comparison to open-pods.
BUTTTTT... if you want a damn garang sound coming from under your hood, go for the open-pod air filterlah, sounds nice, pick-up and top speed OK, but maintenance a bit troublesomelah. K&N filters claim to last at least1,600,000KM before you have to exchange for a new one and you just need to clean it once a year... using distilled water or K&N filter cleaner. Also, supposedly the guy at kakimotor told me its recommended that one uses drop-in air filters if your driving a manual car... saves gas so that's a pluslah rite, especially with the recent increase of gas prices to 1.92. All in all, I'm kinda sad to lose da VA VA VOOM sound in my ride, but damn freakin satisfied with the smooth and increase in overall performance of my ride... Now, js gotta decide if I wanna install straight piping for my car... HMM... decisions decisions...