o2 sensor/exhaust problems!!!

[blkssncpt]

I have an 06 silverado ss i want to movemy o2 sensor (the ones by the cats) so i can put some exhaust cutouts before the cats and ran a real open pipe. but i need to know if the exhaust cutouts are before my cats that o2 sensor want read any exhaust while the cutouts are open, so will this take power from me?? if you know or have some type of an idea let me know please!!!

[silverado122775]

I am not sure if this helps, but typically your o2 sensors will be on the manifold and after the cats. Not sure where you are from, but it is illegal to remove your cats ot bypass them.

[Slowprocess]

O2 sims or turning them off with tuning software or a custom tune will take care of them.

[Lyzerou812]

why do that when you'll lose all that torque?

[silverado122775]

He won't loose torque. infact he will gain torque.
If he keeps a muffler on he will get the maximum amount of HP and torque with that setup. You do not want to go straight pipes, because then you will loose back preasure. You need a little back presure other wise it is harder for the engine to push the fumes through.. Ever try to suck a straw that is too big? same concept.
If you do go straight pipes, do not go over 2". That is when you will loose your HP and torque.