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T304 Stainless Steel • Valvetronic Control • AMG V8 Sound Redefined
The Mercedes-Benz CLS 63 AMG is already a masterpiece of performance and design, powered by the legendary 5.5L Bi-Turbo V8. At Valvetronic Designs, we’ve engineered a valved stainless steel exhaust system that elevates this powerhouse to an entirely new level—delivering more performance, more engagement, and complete control over your sound experience.
This system is designed for those who want the best of both worlds: spine-tingling aggression when the valves are open and refined luxury when it’s time to fly under the radar.
Valves Open: Unleash a raw, motorsport-inspired tone with thunderous growls, sharp crackles, and an exhaust note that reflects AMG’s racing DNA.
Valves Closed: A quieter, more subdued tone perfect for city driving, long-distance comfort, or when you want to preserve the CLS 63’s luxurious nature.
Drone-Free Experience: Meticulous acoustic tuning ensures a cabin free of unwanted drone, keeping every drive comfortable.
Enhanced Flow Dynamics: Optimized design reduces backpressure for faster turbo spool, improved horsepower, and torque gains across the rev range.
T304 Stainless Steel: Premium-grade construction for strength, durability, and corrosion resistance in all driving conditions.
Precision TIG Welding & Mandrel Bends: Maximum flow efficiency and flawless craftsmanship.
OEM or Independent Valve Control: Integrated with factory electronics for seamless operation via drive modes, or use our valve control unit for full control at the press of a button
100% Reversible: Bolt-on installation allows a return to stock configuration at any time.
Performance Unleashed: Unlock the full potential of the 5.5L AMG Bi-Turbo V8.
Sonic Perfection: Aggressive yet refined tone that defines AMG’s character.
Luxury Meets Control: Valvetronic technology gives you sound on your terms.
2011 – 2018 Mercedes CLS 63 AMG (W218)
Full unrestricted exhaust flow delivers an aggressive, motorsport-inspired tone that builds with intensity through the rev range. Experience the true voice of your engine.
Valves closed, the system provides a refined, near-stock exhaust note perfect for daily driving, early mornings, and highway cruising. Zero drone, complete comfort.
If it's in stock and ready to roll, your order usually hits the road within 1–3 business days.
For made-to-order or specialty items (like carbon fiber parts or custom builds), the turnaround can take up to 8 weeks — perfection takes time.
Either way, we'll keep you updated so you know exactly when your parts are leaving the pit lane.
Absolutely! Once your order ships, you'll get an email with a tracking link so you can follow its journey from our shop to your doorstep.
If your order ships via freight, you'll get a separate email with a direct link to the carrier's tracking page — easy and stress-free.
Things happen on the road — even to boxes. If your order arrives damaged, snap a few clear photos of the box and product and send them our way right away.
If your shipment is lost, just email or call us — we'll help track it down and guide you through the next steps to make it right.
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