Magnaflow 5451401 California CARB Direct-Fit Catalytic Converter

The MagnaFlow 5451401 is a California CARB Compliant Direct-Fit Catalytic Converter engineered as a precise replacement for select Audi Q7 applications. Designed to keep the check engine light off and restore proper exhaust function, this converter installs without cutting or welding — making it a straightforward DIY replacement using standard tools.

Key Features:

• CARB Compliant: Meets or exceeds California Air Resources Board (CARB) requirements, allowing legal use in California and all CARB-restricted states
• Direct-Fit Design: Replicates OE spun body geometry for a precise, hassle-free installation — no cutting, welding, or modification required
• Single Laser Fusion Weld: Spun body construction with a single laser fusion weld minimizes leak points for a reliable, long-lasting seal
• Free-Flowing Mandrel-Bent Tubing: Maintains smooth exhaust flow to support engine efficiency and performance
• Premium Stainless Steel Construction: Highly corrosion-resistant stainless steel body ensures durability in harsh conditions
• Compact, Low-Mass Design: Allows for greater thermal efficiency and faster catalyst light-off
• Includes Gaskets: Comes with gaskets to help prevent exhaust leaks and ensure a proper seal at installation
• 3D Scan-Verified Fitment: MagnaFlow's metrology department uses advanced 3D scanning technology during R&D to confirm OE-accurate fit and function

This catalytic converter is built to meet or exceed original equipment standards and has undergone additional testing to comply with CARB guidelines. It is a direct replacement designed for a specific vehicle fitment, ensuring confidence in both fit and emissions compliance from the moment of installation.