Hey guys, I just bought this MR O2 housing from MAP, drop shipped from megan.

It came with the new packaging, badge, etc. However, I was looking at some other O2 housings online, and none of them had an outlet THIS small. Is this normal? It seems smaller than what I've seen some stock units come in at.





Looks like it comes in at about 59mm, which is barely 2.3"

 

Megan states that it's supposed to be 70mm... but I'm not positive where they take the measurements. I'd contact the dealer you purchased it from.

 

I have a megan o2 housing sitting in the garage. I just measured the outlet and it measured at 2 1/2" or about 62mm ID.

 

3 mils is close enough for government work... I'd say you're ok.

 

I helped my buddy install a megan o2 housing on his Evo and as I recall it only had a 2.5" outlet. I know on DSM's 2.5" is the standard outlet on an aftermarket o2 housing.

 

In terms of gains made from an aftermarket O2 housing, wouldn't this just give me the same power of the OEM housing, since it's the same outlet? Aside from the outlet, i don't see much in terms of pipe-work that could drastically affect its power production over stock

Thanks guys, I emailed Megan about this last night, so I'm awaiting their response on the matter. Hopefully I can get this part swapped out for a 2.5" piece.

 

I just swapped out my Megan for the invidia and it is so much bigger outlet then the megan

 

It is what it is. It is a Megan o2 housing there's a reason they are cheaper than a big name band. I'd say a few mm won't make a big difference anyway.

 

I've seen mixed reviews about the Invidia piece though, even from people like David Buschur. Iirc, in dyno testing the Invidia piece came out somewhere near the bottom despite having the largest outlet

 

Yea I don't notice a difference but I wanted better flow for my Fp black