Unlock the true potential of your Mercedes-Benz AMG X290 GT43/GT50/GT53, W213 E53, C257 CLS43/CLS53, or W167 GLE53 with the Untd. Performance Catted Downpipe W/Shield. Engineered for the M256 3.0L turbocharged inline-6 engine, this downpipe utilizes a 200-cell high-flow catalytic converter to significantly enhance exhaust flow, reduce backpressure, and increase overall power output. Paired with an integrated heat shield, this downpipe improves turbo efficiency, accelerates turbo spool, and provides a more aggressive exhaust note—all while maintaining emissions compliance.

Perfect for enthusiasts who want to maximize performance while keeping their vehicle street-legal, the Untd. Performance Catted Downpipe offers the ideal balance of power, sound, and reliability. Whether you’re carving through mountain roads or hitting the track, this downpipe provides the performance boost you need without compromising quality or emissions standards.

Key Features:

200-Cell High-Flow Catalytic Converter
The 200-cell high-flow catalytic converter allows for optimal exhaust flow while maintaining emissions compliance. It significantly reduces exhaust backpressure, improving turbo efficiency, turbo spool time, and overall power output, resulting in a noticeable increase in horsepower and torque across the RPM range.

Integrated Heat Shield for Protection and Performance
Equipped with an integrated heat shield, this downpipe ensures that the surrounding components in your engine bay are protected from excessive heat. The shield helps regulate temperatures, minimizing heat soak, and improving the long-term durability of the engine and surrounding components.

Enhanced Turbo Efficiency
The catted design of the downpipe ensures that your AMG inline-6 turbo engine can operate at its highest efficiency. By increasing exhaust flow and reducing backpressure, the turbochargers can spool quicker, providing faster throttle response and more consistent power delivery, with reduced turbo lag for a more enjoyable and dynamic driving experience.

Aggressive Exhaust Sound
With the high-flow catalytic converter, the AMG X290, W213, C257, and W167 models will experience a deeper, more aggressive exhaust tone. Enhanced turbo spool and crackles provide a more motorsport-inspired exhaust note, offering a refined yet thrilling sound that makes every drive more exciting.

Durable Stainless Steel Construction
Constructed from premium 304 stainless steel, this downpipe is built to handle the extreme conditions of high-performance driving. It is designed to withstand high temperatures and demanding driving conditions while maintaining strength, integrity, and a long lifespan. TIG-welded seams and CNC-machined flanges ensure a perfect, leak-free fitment.

Direct Fitment & Easy Installation
The Untd. Performance Catted Downpipe W/Shield is designed as a direct replacement for your factory downpipe. The installation process is straightforward, with all necessary hardware, including gaskets and clamps, included. No custom modifications or cutting are required, making it an ideal choice for a hassle-free upgrade.

Compatibility:

Mercedes-Benz AMG X290 GT43/GT50/GT53 (2020+)
Mercedes-Benz W213 E53 (2019+)
Mercedes-Benz C257 CLS43/CLS53 (2019+)
Mercedes-Benz W167 GLE53 (2020+)
Engine: M256 3.0L Turbocharged Inline-6

For those looking to unlock the maximum performance from their AMG X290, W213, C257, or W167, the Untd. Performance Catted Downpipe W/Shield is the perfect performance upgrade. With faster turbo spool, improved throttle response, and an enhanced exhaust note, this downpipe elevates your driving experience to the next level while ensuring that your vehicle remains street-legal.

Note: This product is emissions-compliant in most regions, but local regulations may vary. Please check local emissions requirements before installation.

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Untd. Performance 200 Cell Catted Downpipe W/Shield – Mercedes-Benz AMG X290 GT43 GT50 GT53 / W213 E53 C257 CLS43 CLS53 / W167 GLE53