Racod

I was looking to change the air filter on a 1990 I picked up 2 years ago. I have read of so many doing an airbox mod or replacing with one that flows better.

This is what was on mine. I cannot image something else getting much more air in. Is this after market??



Thanks

vert vette virgin

Looks like a stock unit to me..

antfarmer2

That is stock look at the vidio section they cut all the fins out

antfarmer2

I just put in a K&N and left it stock

John A. Marker

Yes, that is the stock cover. The modification is to cut all the louvers out leaving the two center pieces (about 1/2" wide) or remove everything just leaving the outside band. Cheap and easy modification that will flow a little more air.

HGUNHNTR

That looks just like the one in my 1994.

kenpeindl

Here is a video on cutting the air box. This is from a earlier C4 but the process is the same.

dm575

Modded mine to match the decat and eliminators. Probably little benefit but it makes me happy

Klondike

When you add up the area of all those slots, it still has more Sq. In. area than the throttle body blades. Why bother to cut them out?

1984Z51auto

Cut out because it looks

antfarmer2

Looks like a K&N filter

DGXR

Yup. I'd love to see numbers proving the benefit of this modification. "Because it breathes better" only proves everyone has an opinion. IMO this is just another waste of time and another reason to keep the car as it was designed.

mxnuke

this is my aftermarket box,looks like the same lid.