Headers and o2 sensors

[Lightning]

Originally Posted by snapfrank

so do i move them like in the pics or back all of them 1 space

Yes, attach one to a bung on the collector of the header and one to a bung on the rear of the catalytic converter they way you have it shown in the diagram.

[Johnny Danger]

Snap Frank,

If you don't mind me asking, what do you hope to gain after all of this ? Once you decide to eliminate the oem headers and pre-cats, and your done running new O2 sensors, creating bungs and likely chasing cel's until you're cross-eyed, you'll still be left with a set of very restrictive 400 cell secondary cats. Unless you plan to go "catless", and that would not be advisable for both emissions, as well as performance concerns, in my opinion I think that you are heading in the wrong direction. Unless you have planned out a "system" that involves high quality headers of a proven design along with lower cell cats (expensive !!!!!) of equal attributes, quite frankly, I don't think you stand to gain anything with what you are attempting to do. Perhaps, a better decision would be to leave the existing headers and pre-cats alone, and simply delete and by-pass the secondary cats. In my experience, by doing so you'll stand to free up the exhaust flow a little bit more, shed some unnecessary weight, and perhaps most importantly keep the vehicle OBDII compliant.

[snapfrank]

like this


Johnny Danger, nice reflection, i just want to use that headers, but it that does not work i will but back the old manifold on and that all. it's just to passtime that i want to put it on my car, but i will think about what u said.

Originally Posted by Lightning

Yes, attach one to a bung on the collector of the header and one to a bung on the rear of the catalytic converter they way you have it shown in the diagram.