How many catalytic converters are on a 2001 Boxster S?

[steved0x]

Does your county/state do a "sniff" test where they sample the exhaust coming out of the back, or do they do an OBDII readiness check? If they do an OBDII readiness check, you should be fine, since it is the first set of cats that are monitored. If they do a "sniff" test - I would say, how many miles does the car have? If the O2 sensors and the OBDII internal sensors do not show a Check Engine Light, you might be OK, but I don't have any experience, maybe someone on here has front cats only in a state that does a sniff test.

[BYprodriver]

Originally Posted by steved0x

Does your county/state do a "sniff" test where they sample the exhaust coming out of the back, or do they do an OBDII readiness check? If they do an OBDII readiness check, you should be fine, since it is the first set of cats that are monitored. If they do a "sniff" test - I would say, how many miles does the car have? If the O2 sensors and the OBDII internal sensors do not show a Check Engine Light, you might be OK, but I don't have any experience, maybe someone on here has front cats only in a state that does a sniff test.

All this is true, but with the obviously aftermarket rear muffler & secondary pipes don't think it will pass any visual inspection.

[911monty]

Attached below is the emissions testing requirements for the State of Ohio. Yours is one of the 7 most stringent Counties (Cayahoga) and appears to require a Dyno test. You can read and research what is required to import a car from out of State. While this car may pass an OBDII test, it will fail a visual test since the rear cats have been removed and replaced by test pipes, then you would be required to repair the car to pass smog. Could be a headache depending on how aggressive or not your chosen smog test station is.


https://www.dmv.com/oh/ohio/emissions-testing