300/150 Cell Metal Catalyzer

It is designed as a universal sport-type catalytic converter, suitable for a wide range of applications and targeting a horsepower range of 500-600 PS. Constructed from durable SUS304 stainless steel, this catalyzer features an 80mm inlet and 80mm outlet diameters. It employs a combination of 300-cell and 150-cell substrates, which is a substantial improvement over stock catalysts (typically 600-cell and 400-cell). This configuration reduces exhaust pressure, leading to better boost response, especially noticeable above 4000 RPM for naturally aspirated engines and from lower RPMs for supercharged or turbocharged applications. The fin thickness of 0.1mm also contributes to superior heat-resisting properties. This HKS Metal Catalyzer is intended for various Nissan vehicles, including the 240SX, Silvia S13, S14, and S15 models from 1989 to 2002. It's important to note that this product is explicitly stated as **not for HICAS vehicles**. Additionally, as a universal component, flanges need to be welded, and modifications may be required depending on the specific application. An exhaust gas test certificate is included with the product.