Exhaust Housings?

[lordnikon_04]

Which would be better for my 1990 Eclipse GSX, a ported 2G manifold or an aftermarket one of some sort? And also, if i ran a full 3" turboback system and got a 3" O2 Housing w/ dump, would that be able to bolt onto the ported 2G manifold or would i have to have it custom done?

 

[BOOSTED11SECTSI]

ported 2G manifold

 

[91TSi FWD]

What I'm getting out of this is that you are asking if you can bolt a 3" O2 housing to a 2G manifold. They don't bolt together, they bolt to the turbo. The 2G manifold would be a good upgrade tough and you could run it with any type of O2 housing. You have to match the O2 housing to the turbo. The 2G mani would bolt directly on, though some have had to grind away a piece of the flange, but I never had that trouble.