I'm in the middle of changing the original air filter box on my 2.0ts for a k&N 57i.
Ive removed the original box and found its a two part system.
My question is, is there any advantage in leaving the box that sits in the front wing/bumper, (not the one with the filter in) in the car.
This box, would seem to pull air from the front grill next to the fog light and has a small sump for collecting excess water i imagine.
As i intend to place the new K&N filter roughly in the space where the old filter box was, would it help to have the air directed towards it via this unit or am i better off just letting the air flow into the engine bay unrestricted.
I'm in two minds as to the best solution as:
(a) I would like to avoid too much water ingress into the engine bay whilst driving in the rain and it could be that this first stage box would help.
(b) There is only one bolt supporting the unit once the second stage filter box is removed, and i'm trying to get rid of loose rattles on the car, not create more.
The original box had a K&N sport filter in it, but the bolts that hold the top of the box with the air intake on it have all rusted to nothing and despite WD40 have all sheared off.
On a slightly different topic, does anyone supply a kit of replacement screws and bolts in stainless for the engine bay? Ive been slowly swapping mine out as i go round the car.
Any ideas greatfully recieved.