i've had mike welded 02 housing without a single issue, fit perfict.. no cracking and this is after about 7 months so i don't think it will crack...

-E

The temperature difference between the O2 housing and exhaust manifold are drastically different. I have had the exhaust manifold glowing bright orange before and the O2 housing was barely glowing. Also, it has to support the weight of the turbo, which at those temperatures is not easy.

Hi.

i would say don't even do that. the metal that those manis are made of is soooo thin, just cut your losses and get soemthing else like an SFP mani

I dont have the kinda coin to start all over with a new manifold and i cant exactly put the stocker back on......My guy Chad @ FC Customs is an excellant welder and was actually doing some work on these manifolds...Because of the thickness are you thinking there will be future problems or are your concerns more with the welding?

The cracks on something like this don't usually happen right in the weld, usually it is just next to the weld. That is why thin metal is bad for this application. There are some tricks to getting better welds though that will not crack as easily.

hey, when you say it came with the setup.....do you mean you bought one of those deals off of ebay from SSautochrome where they sell you a turbo/mani/ fake tial wastegate?

no I bought a brand new T3/T4 Turbo ,Manifold and Wastegate off of a business in Central IL.
I talked to my guy and he has no problems welding on these manifolds.