NO for two reasons. First, its illegal to remove it. Second, its part of an entire "system" that is engineered to work together. If you need a 'replacement' I suggest a free flowing, universal one from one of the 'mail order' guys. Maybe $75. They have no more restriction that a straight pipe.
It has two catalytic converters, one for each bank.
Immediately behind the engine.
P0420 is bank one catalytic converter efficiency failure.
In the exhaust pipe, immediately behind the engine.
It is the large part in the exhaust immediately behind the engine.
The gas engine has one before the catalytic converter.
A flashing check engine light indicates a engine condition that could be causing severe catalytic converter damage. The usual cause is a harsh misfire. The engine computer will have set a code, or codes that will help in diagnosis.
No.
Plugged air/fuel filter? Plugged catalytic converter?
Before and after the catalytic converter
Not legally and not with out the check engine light coming on and staying on.
In the exhaust pipe, just behind the engine.