Valvetronic Designs
Valvetronic Mercedes Benz G-Wagon 463A / 464 Valved Sport Exhaust System
Valvetronic Mercedes Benz G-Wagon 463A / 464 Valved Sport Exhaust System
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Mercedes G63 AMG (W463A) – Valved Exhaust System
T304 Stainless Steel • Full Valve Control
Overview
The modern G-Wagon is a symbol of power, presence, and luxury—but its factory exhaust leaves much of the AMG character muted. The Valvetronic Designs Valved Exhaust System transforms the G63 into a snarling beast while retaining the refined manners you need for long drives. Inspired by the AMG GT-R’s visceral tone, this system was developed from the ground up to deliver an uncompromising blend of aggression, refinement, and daily usability.
With full valve control, you dictate the soundtrack of your G63—whether it’s a subdued purr for comfort or a raw, race-inspired roar that commands attention.
Sound & Control
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Valves Open: Unleashes a deep, aggressive tone reminiscent of AMG’s GT-R, filling the cabin with character while remaining drone-free.
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Valves Closed: Civilized and refined—perfect for commutes, road trips, or low-profile situations.
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Balanced Tuning: Developed for maximum excitement with zero compromise to comfort or usability.
Performance Engineering
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Optimized Flow: Fully mandrel-bent piping ensures smooth, unrestricted airflow for sharper throttle response.
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Acoustic Design: Tuned for a naturally aspirated-style character while maintaining the muscular presence of the 4.0L bi-turbo V8.
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Strength & Durability: Precision TIG-welded for long-term reliability under high-performance use.
Construction & Craftsmanship
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Material: T304 stainless steel throughout.
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Finish: Includes both anodized gold T304 and black T304 slash-cut tips for a fully customizable aesthetic.
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Valve Integration: Uses OEM-style electronic valves for seamless operation.
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Reversible: 100% bolt-on design, easily returned to stock at any time.
Fitment
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2019+ Mercedes G63 (W463A)
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2022+ Mercedes G63 Squared (W463A)
Will not fit G65 models.
Features
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T304 stainless steel construction
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Dual tip finish included: Anodized Gold & Black T304 slash-cut tips
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Electronic exhaust valves with OEM integration
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Precision TIG welds for strength and durability
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Fully mandrel-bent piping for optimal flow
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100% reversible—return to stock anytime
ECU tuning is the process of adjusting the engine control unit's software to enhance vehicle performance, efficiency, or fuel economy.
It can, depending on the manufacturer. Many warranties do not cover modifications like ECU tuning.
Use the highest octane fuel recommended for your specific tune to ensure optimal performance and safety.
Yes, a properly tuned car can be used daily, as long as the tune is tailored for reliable, everyday driving.
CPC (Central Powertrain Controller) and TCU (Transmission Control Unit) manage your vehicle's powertrain and transmission systems, respectively.
Map switching allows you to change between different tuning settings (maps) for varying driving conditions without having to retune the ECU.
Yes, if done by a professional using proper tools, ECU tuning is generally safe for your vehicle.
ECU tuning works by modifying the software that controls engine parameters like fuel mixture, ignition timing, and boost pressure to optimize performance.
The process of installing a tune depends on the vehicle’s make and model. Some tunes are installed by connecting a tuning device to your car’s OBD-II port and uploading the tuned software, others may require ECU unlock.
Stage 1 is for vehicles with no modifications, stage 2 is for vehicles with bolt-on upgrades or downpipes installed.
We offer post-installation support, troubleshooting, and guidance on using your tuning software and hardware.
Choose tuning software that is compatible with your vehicle, has good reviews, and suits your performance goals (e.g., reliability vs. max power).
