drilling and smoothing airbox on a tdi

[olliep]

having just come from the world of 20vT, alot of poeple are in the habit of drilling and smoothing their air boxes. Just wondered if there was any point in doing it on a TDI?

 

[Ibiza Dan]

Alot of the little bumps and baffles in the ibiza air box are just there to make them less noisy really so yes. I have done it, havn't got any pics at the moment. The plastic pipe that goes from the air box to the front of the car has some baffles in it that are restrictive and can be easily removed. If you remove the air box and this pipe you will see what I mean.
I'm going to have a go at running a cold air feed up from the fog light hole to the air box soon, should help get a little more cold air in.
If you decide to drill the air box don't make the holes too big so you can get bits of leaves n stuff in there. And make sure all the air going into the engine passes through the filter.

Good luck

 

[sssstew]

youve got the cupra intake already on so unless you have too much time to spare then i wouldnt bother, the gains would be so minimal it wouldnt register.