So one thing we can do is not to mess with our intake tube and just remove the resonators and add an performance filter in the box. D14 owners are unlucky here as our intake is a mess. So we get rid of it. Instead, we can get a stock airbox with the stock tube from a d16zy/y8 engine or even better the best probably dc2R airbox (it has a cone filter inside).
If we do that we keep the same length of the intake tube which is a good factory option.
Then we could buy a decent aftermarket kit. Good companies are supposed to rnd the size of their tubes.
Another option is to customize our own piping. This is what i have done.
At first i had an aftermarket intake tube which was 76mm(3inch). I always thought this is too big. i had the feeling that the car wasn't so good at low and mid revs |(maybe the too big tube reduced the velocity of the intake air) So i made a custom one 55mm width. i thing this is better. Noone can tell for sure of course, if you don't go to the dyno for the exact results.
So today i received my apexi intake which has a short intake tube to be added in the stock ek4/9 in.tube. So i am thinking of getting a used tube like that
