sohc ZC engine exhaust question
 

Hi,

My car is pulling a code 1 Oxygen content today. OK new o2 sensor time.

Then I got myself thinking about installing the exhaust manifold which already has an o2 sensor installed that came with my engine. 4 to 2 setup.

Now I just need a 2 to 1 down pipe.

I know there would be a slight performace upgrade from switching from stock 4-1 to 4-2-1 which is another reason why I would like to do it.

Question is

Where would I find a 2 to 1 down pipe to fit onto the sohc ZC manifold?

try the place that u got the motor from...or check the classifieds...they pop from time to time and you will get performance gains from the manifold too...but who knows if that O2 that came with that manifold is any good...but yea, if u can get the lower part of the ZC manifold go for it!