Questions about O2 sensors...

[papasmurf]

Was driving home the other day and the CEL came on and I did not have my scanner with me so I pulled into an O'reilly's and scanned/cleared the code before proceeding home. The code was 1117 and their scanner did not have the code definitions for porsche so I checked in online when I got home and it seems it is O2 sensor related. I thought it might have been a one time thing but the CEL came on again about 24 hrs later while driving home (both times sitting idle at a light). The car has 79k miles and I am fine with changing out the sensors if needed (was planning on just the pre-cat sensors) but was wondering which model to purchase. I have read through Mike Focke's site at the part numbers and was planning on purchasing the OE Bosch parts without the connector and just splicing connector from my old O2's onto the new parts. I have heard the basic part is the same that Bosch sells and the markup is more for the already configured pigtail/connector that is porsche specific. The part number I am looking at buying is bosch PN# 15738. Have plenty of people used this with success?