When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
there are 2 bungs there is one at the top and one at the bottom, there is a plug tho so you can use either the top or the bottom bung, in your case the bottom, the plug threads into the bung so there wont be any problem with leaks.
im not sure if using the bottom bung will help you pass emissions :dunno:
i actually have no idea, i bought it cuz it was relativley inexpensive, but at that time i had a dx, now im swapping in a b16 so obviously it wont fit, and id like to get rid of it