Since clean job is FOC, so i went to 2 shops to clean it, do double cleaning.
Wow, the difference is so huge, now the pedal feel alot more responsive and lighter....
Wanna raise some discussion on after market air filter.
Some said those good air flow filters are actually poor in filtration,
so last week i did some checking on the air box.
I using my hand to rub the internal of upper air box and the air hose (after filter), i din notice any dirt on my hand, what i get is as clean as original. I have been using this K&N since 20k, now almost used for 45k adi.
I read the article for filtration performance thread posted by someone here previously, the high pressure air suction to test the filter. I think Apexi is the best for that test.
Anyway, i doubt about those testing method. IMO, our engine air suction actually is not as strong as in that test, so for particle to pass through filter still very minimal, proved by my checking result. What i'm thinking is for after-filter airbox/airhose area, new car until now 63k, i din clean it/wipe it even once, if the particle still can pass through (even very less), sure it will left a black mark on my hand, but it didn't.
So i think best airflow = poor filtration theory is not valid in real world application. Just my thought, you can share your opinion if any.
This post has been edited by coolkwc: Apr 17 2012, 09:27 AM
Apr 17 2012, 09:25 AM
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