MagnaFlow is a performance exhaust manufacturer best known for cat‑back and axle‑back systems, mufflers, and catalytic converters engineered for quality sound and improved flow. Their vehicle-specific exhaust options span muscle, import, and truck applications—making MagnaFlow a staple upgrade when you want a deeper tone, cleaner fitment, and a proven performance-focused exhaust setup.
MagnaFlow High Flow Catalytic Converter: 300C / Challenger / Charger / Magnum / 5.7L Hemi 2005 - 2024 (RWD ONLY)
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PART # 16421
16421 Magnaflow 05-24 300C / Challenger / Charger / Magnum / 5.7L Hemi (RWD ONLY) High Flow Catalytic Converter. MagnaFlow High Flow Catalytic Converter delivers OE-level performance and Federal/EPA emissions compliance for RWD vehicles. Built with corrosion-resistant stainless steel, mandrel-bent tubing, and a spun body design, this direct-fit converter ensures optimal exhaust flow while reducing leak potential. Easy DIY installation requires no cutting or welding, keeping the check engine light off.
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MADE IN THE USA
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MagnaFlow is a performance exhaust manufacturer best known for cat‑back and axle‑back systems, mufflers, and catalytic converters engineered for quality sound and improved flow. Their vehicle-specific exhaust options span muscle, import, and truck applications—making MagnaFlow a staple upgrade when you want a deeper tone, cleaner fitment, and a proven performance-focused exhaust setup.
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MagnaFlow High Flow Catalytic Converter
05-24 300C / Challenger / Charger / Magnum / 5.7L Hemi (RWD ONLY)
16421
The MagnaFlow High Flow Catalytic Converter is engineered to maintain your vehicle’s performance and meet or exceed Federal/EPA emissions standards. Constructed from durable stainless steel with mandrel-bent tubing and a spun body design, it maximizes exhaust flow while minimizing leaks through a single laser fusion weld. Advanced 3D scanning and precision metrology ensure a perfect OE-level fit and function, making installation straightforward without cutting or welding. This converter is compatible with RWD vehicles from 2005-2024, including 300C, Challenger, Charger, and Magnum models. Equipped with O2 port plugs and a compact, low-mass design, it enhances thermal efficiency and long-term durability, keeping your vehicle running cleanly and efficiently.
- OEM Grade High Flow catalytic converter for emissions compliance
- Direct-fit design with spun stainless steel body for durability
- Mandrel-bent tubing ensures unrestricted exhaust flow
- Single laser fusion weld reduces leak potential
- Easy installation, no cutting or welding required
- 3D scanned and precision-engineered for OE-level fit and performance
- Compact, low-mass design improves thermal efficiency
- Includes 2 O2 port plugs for installation
- Bolt-On inlet | Clamp-On outlet
- Stainless steel finish for long-lasting performance
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Standard shipping
Free Standard Shipping on orders over $250. Select “Free Shipping” at checkout.
Free Easy Returns
Need to return an item? We make it easy. Email us and we'll send you a free return label with instructions on how to return.
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YEARMAKEMODELSUBMODEL2011 - 2024Chrysler3005.7L Hemi2005 - 2010Chrysler300C5.7L Hemi2009 - 2023DodgeChallenger5.7L Hemi2005 - 2023DodgeCharger5.7L Hemi2005 - 2008DodgeMagnum5.7L Hemi
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MagnaFlow High Flow Catalytic Converter
05-24 300C / Challenger / Charger / Magnum / 5.7L Hemi (RWD ONLY)
16421
The MagnaFlow High Flow Catalytic Converter is engineered to maintain your vehicle’s performance and meet or exceed Federal/EPA emissions standards. Constructed from durable stainless steel with mandrel-bent tubing and a spun body design, it maximizes exhaust flow while minimizing leaks through a single laser fusion weld. Advanced 3D scanning and precision metrology ensure a perfect OE-level fit and function, making installation straightforward without cutting or welding. This converter is compatible with RWD vehicles from 2005-2024, including 300C, Challenger, Charger, and Magnum models. Equipped with O2 port plugs and a compact, low-mass design, it enhances thermal efficiency and long-term durability, keeping your vehicle running cleanly and efficiently.
- OEM Grade High Flow catalytic converter for emissions compliance
- Direct-fit design with spun stainless steel body for durability
- Mandrel-bent tubing ensures unrestricted exhaust flow
- Single laser fusion weld reduces leak potential
- Easy installation, no cutting or welding required
- 3D scanned and precision-engineered for OE-level fit and performance
- Compact, low-mass design improves thermal efficiency
- Includes 2 O2 port plugs for installation
- Bolt-On inlet | Clamp-On outlet
- Stainless steel finish for long-lasting performance
Standard shipping
Free Standard Shipping on orders over $250. Select “Free Shipping” at checkout.
Free Easy Returns
Need to return an item? We make it easy. Email us and we'll send you a free return label with instructions on how to return.