Exhaust info

[Old and good]

i have been thinking of doing an exhaust cutout probably an electric one but is it ok to put it in front of the cat i have a 93 stealth sohc

[Igovert500]

I think you have may have an o2 sensor right before your main cat, in which case you would probably get a Check Engine light when you run it open. But it is better for hp if it's before the cat.

[Old and good]

ok does the engine run normaly even though the ecu knows there is no airflow in the exhaust?

[mike93vr4]

the ecu does not know that air is flowing in the exhaust . the o2 is just looking for lean\rich