Direct-replacement high-flow catalytic converters for naturally aspirated engines (factory unmodified and mildly modified). These converters are direct replacements for factory 1991-94, 1995-99, and 2000-05 NSX converters and feature high-quality EPA-approved catalytic converters. This catalytic converter is not CARB approved for use in California.
These converters feature a high-flow design for naturally aspirated engines (for forced induction engines, click here) up to 380 BHP. The converters also feature stainless steel flanges designed and manufactured by ScienceofSpeed. 1991-94 applications include required hardware. 1995-05 applications are compatible with the factory hardware.