The Apexi is a good filter, but so are others, for less. Apexi, as well as most companies, haven't posted dynocharts for their filters making it difficult to know which is best.
From a theoretical basis K&N is the best filter. The resistance is slim, the size is larger than others, it's oil based, and it's reuseable. To boot, it's half the price. K&N doesn't get enough respect in the tuning world, probably because it isn't JDM. The other proof behind K&N is that the filter has taken several DSMs to low ET quarters. Apexi can't say the same.
Most JDM brands can overcharge because Import Tuner says they're good for Civics
A better bet is to buy the best part for the car, whatever the brand. For performance and money, there are better alternatives.
Not everything Apexi is junk. Their exhaust is nice.
Bubble Bobble
