2g o2 housing. Do I need to port??

[buugiewuugie]

I want to install a 2g o2 housing on my 92 laser RS AWD. I have a 3" exhaust. I know I'm going to get a 2g manifold. So my question is. Do I need to port these? Or do they already flow enough? I just want to get down into the 13's maybe a high 12.

 

[dave99gst]

They flow enough - but if ya are going with 3" exhaust
a little port/polish wont hurt.

 

[ECLIPSE4x4]

I would port it while you have it off. If not you will be posting in about a month asking why you have so much boost creep.

 

[TurboChrged93]

Port it while it's off. Makes more sense.

 

[airmail96]

As far as I know it never hurts to port .

 

[daren_p]

Yes might as well port it while its off. Reduces the chances of boost & if you port it yourself its basically free hp & gain some spool time.