95WTSI
15+ Year Contributor
- 189
- 0
- Jul 21, 2004
-
Greeley,
Colorado
I pulled the downpipe and cat for a 3" downpipe and there is a wire that attaches to the car and the cat. Do I need to connect that to something?
Thanks
Thanks
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I can't remember now where I ran across it, but the word was that the exhaust was grounded for radio interference noise suppression. Beats the hell out of me.daren_p said:That is a ground wire, it connects to the body on one end and usually there will be a nut/bolt welded somewhere on the cat hanger. Not exactly sure why they have it there but the factory must have done it for a reason, maybe its to ground the O2 sensors?