Mercedes AMG GT63 Valved Sport Exhaust System

Catback Exhaust System + Optional Free Flow Downpipes

Overview

The Mercedes AMG GT63 delivers exceptional performance from the factory, but the sound leaves room for improvement. The Valvetronic Designs Valved Sport Exhaust System was developed to unlock the full character of the AMG 4.0L twin-turbo V8, delivering a deeper, more aggressive tone while maintaining refined drivability.

Engineered as a complete catback solution, this system enhances exhaust flow and acoustic quality without introducing excessive drone or harshness. When paired with our optional free flow downpipes, the system transforms the GT63 into a true performance machine with an unmistakable AMG sound profile.

Designed for both daily driving and spirited performance, the system provides a perfect balance of comfort and aggression—giving drivers full control over their exhaust experience.

Why It Works

• High-flow catback design: Improves exhaust flow and enhances overall sound quality.

• Valved exhaust technology: Allows seamless transition between quiet cruising and aggressive performance sound.

• Optional free flow downpipes: Further increase volume, reduce backpressure, and unlock the full potential of the AMG V8.

• Complete system integration: Designed to work as a cohesive system for optimal performance and tone.

Sound & Control

• Deep V8 tone: Rich, aggressive sound that enhances the AMG driving experience.

• Valve control: Switch between refined comfort and full performance sound instantly.

• Enhanced volume with downpipes: Optional free flow downpipes deliver maximum sound and performance.

• Reduced drone: Engineered for comfortable cruising when valves are closed.

Construction & Options

• Materials: ultra-light titanium.

• Craftsmanship: Precision TIG welding and mandrel-bent tubing.

• Tips: Premium exhaust tip options available.

Valve Integration

• OEM integration available for factory-style operation.

Fitment

• Mercedes AMG GT63

• Mercedes AMG GT63 S

Installation Notes

• Designed as a direct-fit catback system.

• Professional installation is recommended.

• System is fully reversible.

What’s Included

• Valved catback exhaust system
  

• Exhaust tips

• Hardware and clamps

• Optional: Free flow downpipes

Specifications

• Material: Grade 5 titanium

• Valves: Electronic OEM integration

• Application: AMG 4.0L Twin Turbo V8

Valvetronic Designs shipping & returns

• Returns: new, unused and uninstalled parts within 30 days of purchase, in the original packaging, with a return authorization (RMA) number issued first.
• Restocking fee: 25% on all non-warranty returns; the customer pays return shipping unless the part qualifies for warranty.
• Sound: exhaust sound and tone are personal taste and are not grounds for a return or warranty claim.
• Warranty: lifetime on stainless and titanium tubes and welds, 3 years on mufflers and resonators, 1 year on valves, remotes, electronics and tips. If a problem shows up after install, contact us before removing the part.

To start a return or ask a question, contact us with your order number.