Cats?

[THE MAD PATCHER]

Hi:
I am planning a cobra build and would like to use a coyote engine with a Tremec.
I would like to use your 4 into 1 headers without cats.
How does the control pack for the coyote work on the headers without cats?
I thought that the control pack depends on input from the fore and aft cats to adjust the tune.
I thank you for your time.

[michael everson]

Most coyote builds dont use cats. I have never seen one. You will likely need a tune on your car after its built. The computer doesn't monitor cats but does monitor the O2 sensors
Mike

[Nigel Allen]

I have cats on mine, it's a requirement in Australia. The Coyote crate engine control pack only has 2 sensors, they are installed before the cats.

Cheers,

Nige