How will cutting off my 2006 ford fusion catilytic converter effect my car?

How will cutting off my 2006 ford fusion catilytic converter effect my car? - 1

You won't pass inspection in many states.

It will fail the emission test.

1. It might get 1-3 HP more
2. It would cause a large plum of smoke to come from your car
3. It would also fail any exhaust tests

If you believe the catalytic converter on your fusion has failed as the ECM likely has set trouble codes. If you believe straight piping it until you can get around to replacing the catalytic converter can get yourself in ultra hot water for tampering with emissions equipment as if you live in a state that does emissions testing as your fusion could automatically fail testing.

(1) It will result in greater emissions without a corresponding performance increase.

(2) It will subject the driver -- you -- to arrest and fines.

Performance-wise probably nothing and you will feel very dumb the next time you car has to get smogged cause it will NOT pass without them.

It won't have license plates next time you need to renew them.

It will have a negative effect overall. Any performance boost we anticipate will be minimal at best. Far better to use remapping if we're seeking power gains. Do be aware any modifications to a vehicle will tend to automatically make any insurance invalid. For that car we may get a small improvement of couple of BHP but with sensors not reacting ( no cat) ecu will or ought cut back on fuelling etc to 'save engine' thus we in reality may well get a marked decrease in power and pulling ability. Not recommended.

Yes.