Catalytic Converter

98 Accord, EX, 3.0 liter, 1600000 miles
I'm getting the code P0420: Catalytic System Efficiency Below Threshold
I'm fairly certain that the catalytic converter is bad.
First question: Can I put an aftermarket converter on and it satisfy
the emissions standards just as a Honda converter does? In other words,
will an after market converter pass all the same emission tests that
the original Honda conveter does? (I live in Texas if the state
matters.)
Second question: Anyone know of a reliable maker of aftermarket
converters for this car? Is WalkerExhaust good?

 

Wow! 1,600,000 miles. Almost TWO MILLION miles! Amazing!

Maybe if you put some commas inside your mileage listing you'd find such
amusing errors before posting them.

Why do schools teach kids to leave commas off anyway?

Check for a cracked exhaust manifold or exhaust leak first. Are both your
oxygen sensors inside the cat or is the primary in the exhaust manifold?

Yep. for two years anyway. After that it's a gamble. There's a reason
aftermarket cats cost $100 and OEM is $1,000.

They all are. For two years.

 

id take the gamble. thats 20 years worth of catalysts