I would say its worth it and yes it has an O2 fitting welded on . My car makes good HP on the dyno with just the race downpipe and 2.25 TT exhaust . Going for some new timeslips this weekend if my head gets done in time . Jasin -- Email problems to: scirocco-l-probs@scirocco.org To unsubscibe send "unsubscribe scirocco-l" in the message to majordomo@scirocco.org