
Specifications
- Brand
- Magnaflow
- Part #
- 21-504

Magnaflow 15-17 C300 L4 2 OEM Close Coupled Direct Fit Converter
$872.00
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Magnaflow 21-504 Direct-Fit Catalytic Converter. Keeps your check engine light off with EPA-compliant, stainless steel construction.
Key Features
- Fits 2015-2018 Mercedes-Benz C300, 2017-2019 Mercedes-Benz E300, 2016-2021 Mercedes-Benz GLC300, 2018-2019 Mercedes-Benz GLC350e, 2017-2020 Mercedes-Benz SLC300, and 2016 Mercedes-Benz SLK300.
- OEM Grade Federal/EPA Compliant design helps keep your check engine light off.
- Constructed with high-strength 16-gauge 409 stainless steel tubing for exceptional corrosion resistance and maximum service life.
- Features free-flowing mandrel-bent tubing and a compact, low-mass design for greater thermal efficiency.
- Single laser fusion weld is used to greatly reduce the possibility of leaks.
- Direct-fit design simplifies installation with no cutting or welding required.
Product Details
MagnaFlow is well-known for making exhaust components that perform well and last. This OEM Grade Federal/EPA Compliant Direct-Fit Catalytic Converter, part number 21-504, is designed to keep your check engine light off and your vehicle running cleanly. It's built to meet or exceed federal emissions requirements for OBDII Federally registered vehicles, whether they have California or Federal/EPA emission systems. This converter is a solid option for a range of vehicles, including models like the 2015-2018 Mercedes-Benz C300, the 2017-2019 E300, and the 2016-2021 GLC300.
What sets this converter apart is its construction and design. It features free-flowing mandrel-bent tubing made from highly corrosion-resistant stainless steel, specifically 16-gauge 409 stainless steel for the tubing and durable 308 stainless steel for the MIG welds. MagnaFlow uses advanced 3D scanning during their research and development to ensure this converter fits and functions just like the original equipment it replaces. The single laser fusion weld is designed to greatly reduce the chance of leaks, and its compact, low-mass design helps with thermal efficiency. Installation is made simpler because essential gaskets and hardware are included in the box, and it's designed as a direct-fit, meaning no cutting or welding is required.
This converter interchanges with OE part number 274 140 18 08. Please note that this converter is not CARB approved and cannot be shipped to California. Always refer to the manufacturer's installation instructions for proper tool requirements and procedures.
Specifications
- Brand
- Magnaflow
- Manufacturer Part #
- 21-504
Frequently Asked Questions
Magnaflow 15-17 C300 L4 2 OEM Close Coupled Direct Fit Converter
