mhintlian
Active member
2003 Golf GLS Mk4 5 spd 369,000 miles, original owner. I rebuilt the engine and tranny 50,000 miles ago. Kept the original exhaust system. It appears that upon start up that exhaust fumes are leaking out of the flex part of the downpipes. Upon searching for a replacement downpipe there are numerous available. ID Parts, my trusted parts supplier, has a downpipes with a catalyst that has a disclaimer that the catalyst does not meet the peoples socialist republic of California standards. However, the "smog check" for a TDI is just a plug into the "D" plug under the dash, no exhaust gas analyzer up the exhaust pipe. So if I get the downpipe with the catalyst from ID Parts what is the probability that my vehicle will not pass the "smog check"? Or If I replace the downpipes with one that does not have a catalyst, will that effect the readiness reading? I still have the EGR connected and have no plans of removing it. Everything else is stock.
Any and all replies are truly appreciated.
Mhintlian
Any and all replies are truly appreciated.
Mhintlian