Hi guys,
Fairly new here, picked up an Evo 9 recently and she needs a lot of work.
My local expert told me that i should go with the invidia o2 housing because it has the best design. He mentioned that the megan/ebay one causes boost creep (overboost) because of the way it's designed.
However i read buchur's article from back in 2006 saying that the invidia is basically a POS, doesnt fit well etc.
Between that review and now, did Invidia come out with basically like a version 2.0 that made the fitment better and the o2 sensor bung better?
Thanks in advance.

 

i have both with no fitment problems. Got them in 2008. The mechanic did a minor work so the downpipe to be slightly bigger in its entrance. But i did that with the previous exhausts as well

 

Nothing wrong with the megan or invidia o2 housing, just make sure you port/open when the WG exit.

https://www.evolutionm.net/forums/ev...ing-doubt.html