Stone Exhaust Cat-Back Valvetronic Exhaust System for Mercedes-Benz W213 S213 E63 AMG and E63 S AMG with M177
Transform your Mercedes-Benz E63 AMG and E63 S AMG with the Stone Exhaust Cat-Back Valvetronic Exhaust System. Designed specifically for the W213 saloon and S213 estate with the M177 engine, this premium valved cat-back delivers an aggressive AMG soundtrack on demand, improved exhaust flow and OEM-precise fitment. If you are searching for Mercedes E63 AMG exhaust, E63S AMG cat back, W213 E63 exhaust upgrade, S213 E63S estate valved exhaust or M177 performance exhaust, this is the system you want.
Stone Exhaust has engineered world-class exhaust systems since 1998. Using 3D scanning and reverse engineering of the factory Mercedes E63 exhaust, Stone achieves exact OEM fitment with outstanding build precision. Backed by in-house dyno development, this cat-back for the M177 platform enhances response and delivers the distinctive Stone signature sound while eliminating the drone commonly found on the standard system.
Why choose this E63 AMG Valvetronic Cat-Back
- Purpose-built for Mercedes-Benz W213 and S213 E63 and E63 S AMG with the M177 engine
- Valvetronic control with three modes: On, Off and Auto for tailored sound and comfort
- Plug-and-play OBDII controller and remote for fast, clean installation
- Eliminates cabin drone compared with the OEM exhaust
- One-piece design with machine welding for strength and consistency
- Developed using 3D scanning, reverse engineering and in-house R&D
- Dyno developed in house for verified performance gains
Valvetronic control that suits every drive
The supplied remote gives instant control of your E63 exhaust valves. Open for maximum AMG character and flow, close for refined cruising, or use Auto to have the valves operate automatically at a set RPM. The system is plug and play via the OBDII port for a straightforward, reversible install.
OPF delete solution included
Running an OPF-equipped car. Stone provides an OPF delete solution free of charge so you can fit this cat-back to OPF models without triggering an error. No ECU coding is required to suppress OPF warnings.
Engineering that delivers
Stone’s advanced 7-axis CNC bending achieves exceptional roundness and flow, while crisscross and overlapping welding techniques increase durability at high-temperature joints. Direct spot welding by mechanical arms delivers precise, repeatable welds. The result is a beautifully crafted cat-back exhaust for the Mercedes E63 AMG that fits like OEM and performs like a true performance upgrade.
Our experience
We have fitted and run this Stone Exhaust on customer E63 and E63 S platforms and the feedback has been excellent. Customers love the crisp, motorsport-inspired tone when the valves are open and the calm, drone-free refinement with valves closed.
Compatibility
- Mercedes-Benz E-Class W213 E63 AMG 2016+
- Mercedes-Benz E-Class S213 E63 AMG 2016+
- Mercedes-Benz E-Class W213 E63 S AMG 2016+
- Mercedes-Benz E-Class S213 E63 S AMG 2016+
- Engine: M177
Features at a glance
- Stone Valvetronic Mercedes-Benz W213 and S213 E63 and E63 S AMG Cat-Back Exhaust System
- Valvetronic valve control with On, Off and Auto modes
- Plug-and-play OBDII controller and handheld remote
- One-piece design
- 3D scanning and reverse engineered for OEM fitment
- Machine welding, direct spot welding and advanced techniques for durability
- Dyno developed in house
- Eliminates drone found on the standard exhaust
- OPF delete solution available free of charge for OPF cars
Watch the installation overview
Fitting and support
Prefer professional installation. Nforcd offers expert fitting at our Warwickshire facility. Request a quote at Sales@nforcd.com and our team will get you booked in.
Warranty
Stone Exhaust 2-year warranty.
Part number
SKU: MP521S
Search-friendly terms
Mercedes E63 AMG exhaust, E63 S AMG exhaust, W213 E63 cat back, S213 E63S estate exhaust, Mercedes M177 valved exhaust, E63 AMG valve controlled exhaust, Stone Exhaust E63, Mercedes E63 performance exhaust UK, E63 AMG OPF delete exhaust, E63S catback valvetronic, Mercedes-Benz E63 AMG sound upgrade.