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Quote:

Originally Posted by X5only (Post 1200386)

That's a strong declaration, Upallnight, but I think you're right looking back at the time I used to take my vehicles to Indy shops. I now do my own repairs and I use mostly OE parts except stuff like oxygen sensors and such.

O2 I went though hell for over a year with non OEM, they are so easy to change pre cat I took a gamble on 1/4 the price. Not worth it get Bosch. I ended up cycling though knock off for all four on my X5. Wife's is overdue for changing them all out I will get bosch

Quote:

Originally Posted by andrewwynn (Post 1200409)

You're right. My bad, in my mind I was differentiating between dealer (i.e. items stamped with BMW logo) and non-dealer O2 sensors but which are exactly the same and without the BMW logo on it. Yes, I did replace them on my 4.4 with Bosch 15682,15335, 17255, 17254. Got them from Fcpeuro due to their lifetime replacement warranty, meaning that when they need replacement next time, I get free O2 sensors and incur only shipping costs to/fro.