ScienceofSpeed Factory-Replacement Catalytic Converter Set for Naturally Aspirated Engines - NSX, 1991-05
ScienceofSpeed Factory-Replacement Catalytic Converter Set for Naturally Aspirated Engines - NSX, 1991-05 Direct-replacement high-flow catalytic converters for naturally aspirated engines (factory unmodified and mildly modified). These converters are
www.scienceofspeed.com
$795 new, purchased in 2021 but didn’t cut it for California smog checks. Asking $500 shipped CONUS. Removed from the car in early 2023.
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