Benefits of Removing Cat and Running Straight Pipe?

[Nexus1155]

Eh, im probably not going to do it for the simple fact it will toss a CEL and kill the MPG because it cant give proper o2 readings, but acdaazn do you have a blown up picture of your sig?

[largeorangefont]

Originally Posted by Nexus1155

Eh, im probably not going to do it for the simple fact it will toss a CEL and kill the MPG because it cant give proper o2 readings, but acdaazn do you have a blown up picture of your sig?

The car will run fine without a cat. the front 02 sensor handles fueling, the rear checks catalyst functionality and has no influence on fueling.