black318i Posted July 10, 2008 Share Posted July 10, 2008 Has anyone added an o2 bung to a catted AVO downpipe? If so where? Any pics? Link to comment Share on other sites More sharing options...
black318i Posted August 23, 2008 Author Share Posted August 23, 2008 If anyone wants to know it already has a spot for an o2 sensor on the cast bell mouth part. Link to comment Share on other sites More sharing options...
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