Hmmm, he didn't mention anything about the piping, though he did mention the air box.
If you are talking about the air box itself, then no, it won't make a scrap of difference.
If you are talking about the piping, then yes, using a free-er flowing pipe may help.
I thought he meant inside the airbox smooth all the ribs out inside it, not worth the effort not enough change to flow, but yes the intake tube, and a bigger snorkle will, also a better high flowing re-usable filter (the filter does not restrict much air flow), but at least you can clean it the anytimne you want :0)
Maybe, maybe not, its a pain in the ass job to do as well, i started on my air box (i have an ef air box in my ea), but havent finished it, to much effort and I am worried about cracking the air box as I am just sort of bending and snapping them out.
If you are seriously going to do it, i would suggest using a heat blade maybe ;0)
Ive done the Airbox conversion and I must say Its really hard to say if it has helped or not, only a dyno might pick this up but realistically you would need a wind tunnel or something similar to simulate the air speed.
But taking the airfilter out I must admit felt a lot more responsive, until you get used to it and then you think feels normal again and you need to get more power out of it again lol......
Hey all, sorry a bit off topic but does anyone have a clue an what an EF lid would cost either new or from a wrecker as I noticed the one I have has a split on just about every corner (it was on a gas system so probably got a backfire through it at one stage). Back on topic, wouldnt the rigdes in the airbox be useful to swirl the air before it goes into the intake piping?
Id get the bigger piping and piss the ribbing off cause it makes the air turbulent - Keep the original box and cut a new hole to use your pod filter with the bigger piping in the box.
If your chasing killowatts its crucial to get this bit right cause the difference isn't just throwing in a bigger pipe wiv big filter - Its the angles and bends that keep the air spiralling to the plenum hence the acoustically tuned EF cold air intake.