is it the general consensus that the O2 plugs for the bungs on the DP, right after the turbo to DP connection, don't come with any aftermarket downpipe? I sort of expected one when my Maddad Downpipe came in a couple of days ago. I know it costs about $5 at an autoparts store but that's not the point. I just started modding my car so those with plenty of exhaust experience, please chime in.