Upgrading the downpipes on a high-performance vehicle is one of the most effective ways to improve exhaust flow, boost horsepower, and unlock a more aggressive exhaust note. Among the most popular performance vehicles in this category are the Mercedes-AMG E63 W213 and the Lamborghini Urus—two machines known for blending luxury with breathtaking power. Whether you’re aiming for improved throttle response, deeper sound, or maximum turbo efficiency, understanding your downpipe options is essential before making a move.

In this guide, we’ll explore everything you need to know about mercedes e63 w213 catted and catless downpipes and the massive performance potential behind lamborghini urus downpipes. If you’re planning an upgrade, this breakdown will help you make a more confident decision.

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Why Downpipes Matter in Turbocharged Engines

Both the Mercedes E63 W213 and Lamborghini Urus are powered by twin-turbo V8 engines that rely heavily on optimum exhaust flow. A downpipe is responsible for channeling exhaust gases from the turbocharger to the rest of the exhaust system. When upgraded, it can reduce backpressure, help turbos spool faster, and improve airflow efficiency.

Performance-focused drivers often choose aftermarket downpipes to:

• Gain additional horsepower and torque
• Improve turbo spool and throttle response
• Enhance exhaust sound and tone
• Prepare the vehicle for Stage 2 or higher tuning
• Increase cooling efficiency for high-output engines

Downpipes are usually available in two forms: catted (with a catalytic converter) and catless (without a catalytic converter). Each comes with its own benefits, depending on your performance goals and local emission requirements.

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Mercedes E63 W213 Downpipes: Catted vs. Catless

The AMG E63 W213 uses the powerful 4.0L twin-turbo V8 (M177 engine), well-loved for its tuning potential. Upgrading the downpipes is one of the most impactful modifications you can make.

Catted Downpipes

Catted downpipes include a high-flow catalytic converter designed to maintain emissions compliance while still improving performance. Their advantages include:

• Better airflow compared to stock
• Reduced risk of triggering check-engine lights
• More refined exhaust tone—deep but not too loud
• Suitable for daily-driven or lightly modified cars

High-flow cats also limit unpleasant exhaust fumes, making them ideal for drivers who want performance without sacrificing comfort.

Catless Downpipes

Catless downpipes remove the catalytic converter entirely, resulting in maximum exhaust flow and a louder, rawer exhaust note.

Benefits include:

• Maximum horsepower gains
• More aggressive sound
• Faster turbo spool for quicker acceleration
• Perfect for track use or high-level tuning

However, catless downpipes may set off emissions-related warnings and are much louder, which some drivers love and others may find excessive. They’re best suited for enthusiasts focused on pure performance.

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Lamborghini Urus Downpipes: Unlocking the Beast Within

The Lamborghini Urus shares the same 4.0L twin-turbo V8 as some Audi and Porsche performance models, but tuned for Lamborghini’s unique personality. Upgrading to high-flow or catlesslamborghini urus downpipes dramatically transforms how the SUV performs.

With aftermarket downpipes, owners typically see:

• Noticeable horsepower and torque gains
• Sharper and quicker turbo response
• A deep, exotic exhaust note that better matches the Urus’ aggressive styling
• Support for Stage 1 and Stage 2 tuning

Because the Urus is a heavy SUV with supercar-level power, reducing exhaust restriction gives the engine room to breathe more freely—resulting in smoother acceleration and improved top-end power.

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Final Thoughts

Whether you’re driving an AMG E63 W213 or a Lamborghini Urus, downpipe upgrades offer a clear path to unlocking hidden performance. Catted downpipes keep things balanced and clean, while catless options deliver the maximum punch. Both vehicles respond incredibly well to exhaust improvements, especially when paired with ECU tuning.