Anyone with header do this? I noticed my #1 02 sensor is before cat #1 and 02 sensor #2 is before cat #2 but after #1. When I install my header I will have only 1 cat and I'm thinking of extending 02 #1 to #2's location & 02 #2 behind cat #2, which will be the only cat.
Make sense?3

 

Perfect sense.

 

So I guess I'm on the right track.

The header install has been delayed untill my heat wrap paint and clamps get in from JCWhitney.

 

Random,

Can the cable of the O2 sensor be extended? From a Hyundai tech, I heard that the cable is shielded and cannot be extended.

 

The cable is HEAT shielded. As long as you extend the heat shielding near any "hot" parts, you will be fine.