one pipe was connected to the airpump, the other pipe was connected to an intake pipe.

 

You can remove both those pipes and use a block off plate. That's your cleanest bet. What I did was use a black 2-liter bottle cap at the end of the bottom pipe... held one with black duct tape. Then for the top, took a 4 inch rubber tube, stuffed medium steel wool into it alot with a barb adapter at the end and then clamped it onto the pipe to muffle the "moo" sound.

Jeremy

 

Edit: Haha mybad dude, I just realized I didn't even answer you question. Yeah, those are the 2 pipes. The lower one that goes to the air pump gives out exhaust so you'll either have to cap it of remove the pipes fully as stated above with a block off plate. The upper one is an outlet pipe that makes a "moo" sound when not conneted to a muffling device such as the chamber in the upper half of the intake box. You gotta get something to muffle it, as what I did. Or again, remove both pipes and just put a block off plate.



Jeremy

 

Thanks for the reply. Where can I buy some block off plate for that?

 

http://www.2751engineering.com/fd_block_off_plates.htm

from this site, do I need the plate for the ACV or the ACV pipe or both?

 

If he doesn't have an air pump mooing won't be an issue. Block it off then you can remove those two hard pipes.

 

Before I put on the block-off plates, I capped mine off with a rubber furniture cap (you know, so you don't scuff your wood floors) and a hose clamp. It looks less, um, ghetto, than a 2-liter bottle cap.