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Not too familiar with the exhaust system setup on the 370z. Are these the secondary (main) cats following a pre-cat in the exhaust manifold? Most systems I've seen on other

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Old 04-14-2009, 07:55 PM   #11 (permalink)
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Not too familiar with the exhaust system setup on the 370z. Are these the secondary (main) cats following a pre-cat in the exhaust manifold? Most systems I've seen on other cars have a primary o2 sensor before the first cat to monitor A/F, and a second between the two cats to make sure it is doin its job. There is usually no monitoring further downstream of the second o2 sensor (i.e. in theory, the car would not even know if the secondary converters were removed). Is this not the case for the new z?
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