Sorry, I couldn't resist...

I've done the searches and read the threads, but I'm still confused about one last point: if the pre-cat is used primarily for cold start emissions, is it okay to place my wide-band O2 sensor bung between the pre-cat and the primary cat? From all the pics on the OBX header thread and from crawling under my car, this placement would be a LOT easier and certainly a more convenient job. However, if the pre-cat would significantly alter the gas reaching the wide-band sensor at normal operating temperatures, then the easy location is a non-starter.

Thanks,
Jeff

 

Be careful. That word may have different meanings in various English-speaking countries

 

Auto-based double entendres are the best kind!

Seriously though, I am curious whether I can mount my wideband 02 sensor bung between the pre-cat and the primary cat.

Thanks,
Jeff

 

 

Mine is between the pre-cat and the cat (the right #8):

 

Thanks, Andy. I had hoped that the intermediate location was acceptable. That's were it will go.