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Old 06-08-2018, 02:02 PM   #4 (permalink)
Ecky
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Join Date: Dec 2011
Location: New Zealand
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ND Miata - '15 Mazda MX-5 Special Package
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In the 5MT Insight, the rear cat is specifically for NOx, because it has a lean burn motor. I'm unsure if the CVT variant has a rear cat because it doesn't vary from stoich.
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