MagnaFlow 452023 Catalytic Converter with Integrated Exhaust Manifold - Front

California-grade direct-fit exhaust manifold

MagnaFlow 452023 is a direct-fit catalytic converter with integrated exhaust manifold for select Nissan applications. It is built for the 1995-1999 Nissan Sentra and 1995-1998 Nissan 200SX, with CARB-compliant design for listed California and CARB-restricted vehicles.

The MagnaFlow California Converters line focuses on OE-style fitment and emissions compliance for vehicles that require a legal replacement converter. Part number 452023 is engineered to match original equipment function while simplifying replacement on the front exhaust position.

Key features

• Direct-fit catalytic converter with integrated exhaust manifold
• CARB-compliant California Grade design for listed vehicles
• Stainless steel converter body, tubing, and finish for corrosion resistance
• Ceramic substrate material
• Mandrel-bent tubing to reduce exhaust flow restriction
• Bolt-on inlet and outlet for straightforward replacement
• Pre-converter oxygen sensor location
• Mounting hardware included

Detailed product overview

MagnaFlow 452023 is designed to replace the original front exhaust manifold and catalytic converter assembly on compatible Nissan Sentra and Nissan 200SX models. Using 3D scanning during development, MagnaFlow shaped this part to follow OE dimensions and mounting points, helping it install without cutting or welding. The stainless steel construction and included gaskets support a proper seal and help reduce the risk of exhaust leaks. This part cross-references OE numbers 14002-3M200 and 14002-1M510 for the same application.

What this part helps address

• Check engine light concerns related to catalytic converter efficiency
• Failed emissions inspection on listed California/CARB-restricted vehicles
• Exhaust leaks at the manifold-to-pipe connection
• Corrosion damage to the original manifold or converter assembly
• Restricted exhaust flow from a worn or damaged converter

Installation notes and fitment

Compatible With 1995-1999 Nissan Sentra, front, and 1995-1998 Nissan 200SX, front. Confirm engine family, emissions certification, and CARB Executive Order D-193-124 before installation. The bolt-on design supports DIY replacement with the proper tools, and no cutting or welding is required. Use the included gaskets to help achieve a secure seal during installation. Part number 452023 is a direct-fit replacement for the listed front-position applications.

Quality assurance

This MagnaFlow California Grade converter is certified by CARB for legal use in California and other CARB-restricted states on the listed vehicles. It is built to meet or exceed California Air Resources Board requirements for the specified fitments.