Hi there everybody. Wanted to ask if is here any threads of comparing / testing between o2? If no, I'll post my question here.

Is it worth installing aftermarket o2 housing replacing stock one? If yes, what is the most performed and best one for bolt on? I think there must be a some conclusion especially including experience of past years)

 

I've attached a link to the old Buschur Racing test below. The Ebay O2 housings work, but they're likely to suffer from a few issues like: misaligned bolt holes, internal exhaust passageways not properly routed/opened up, prone to cracking if not coated. I'd go through BR to make sure it's done right for this one. Invidia is a solid cast option, but you'll either need to lengthen your O2 sensor wire, or reroute it to fit where they placed the O2 bung on the housing. I've seen this one recommended by a couple shops. WORKS no longer makes their cast housing any more. There's also a number of O2 dump housings out there as well, which are good for Evo9 turbos and larger bolt-on turbos to make more power at less boost, they're loud and I have no idea about their durability. Overall, it just depends on what your trying to accomplish.

http://highboostforum.com/forum/show...d-back-to-back