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Old 04-04-2013, 01:22 AM   #4
Scooby Newbie
Member#: 127614
Join Date: Sep 2006
Chapter/Region: MWSOC
Location: Neenah, WI
2008 WRX
Obsidian Black


My opinion is that if you're going to be modding your car w/ a down pipe, you might as well pick up your own wide band. Innovate MTX-L is a very popular option and comes with a bung.

That said, you really don't need a fancy weld job or bung. The bung should be installed under the protection of the engine bay/firewall anyways. I welded my own with a normal wire feed. Nothing fancy is needed here.

As for the size of bung... honestly they should all be the same size. Unless you're getting motorcycle results or something(?)
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aberg12012 is offline   Reply With Quote