[madfronter]

Originally Posted by spidertri

Wayne angle block simply removes the O2 sensor from the exhaust stream and this keeps the CEL off when running an aftermarket cat. Bottom line is any aftermarket cat will cause P0420, the WAB is used to "avoid" that code.

This FAQ explains the Wayne block and where to get it. Mine has worked flawlessly for the 2500 miles it has been installed.
http://www.42draftdesigns.com/faq.htm#test

So this will fit the ti as well? because they are talking about VWs in the link.