Yonristic Performance Mercedes-AMG GLE 63 / GLE 63 S Valved Performance Exhaust System

Unleash the full voice of your Mercedes-AMG GLE 63 or GLE 63 S (V167/C167) with the Yonristic Performance Valved Cat-Back Exhaust System. Specifically engineered for the 4.0L twin-turbocharged M177 V8, this premium exhaust system transforms the restrained factory exhaust into a powerful, refined soundtrack while preserving the intelligent functionality of the original AMG valve system.

Unlike conventional aftermarket exhausts that replace factory electronics, the Yonristic system is designed to retain the OEM exhaust valves, valve actuators, wiring, and factory drive mode integration. This ensures seamless operation through the vehicle’s original AMG driving modes while eliminating the need for additional valve controllers or electronic modifications.

At the heart of the system is a true dual 3-inch mandrel-bent exhaust architecture, providing substantially greater flow capacity than the factory exhaust. The larger constant-diameter tubing reduces backpressure, allowing both banks of the twin-turbo V8 to evacuate exhaust gases more efficiently. The result is improved throttle response, enhanced turbo efficiency, stronger mid-range acceleration, and a more engaging driving experience.

A defining feature of the Yonristic exhaust is its extended X-pipe crossover, carefully engineered to create smoother bank-to-bank pulse merging over a longer section of the exhaust system. Unlike traditional short crossover pipes, the extended X-pipe blends exhaust pulses progressively, producing a deeper, richer, and more unified AMG V8 soundtrack with improved tonal balance throughout the RPM range.

At idle, the exhaust delivers a deeper, more authoritative tone while maintaining luxury-level refinement. Through the mid-range, acceleration becomes fuller and more aggressive, and under wide-open throttle the M177 V8 produces a commanding, motorsport-inspired exhaust note with improved clarity, stronger turbo acoustics, and smoother high-RPM harmonics.

Constructed from premium AISI 304 stainless steel or optional Ti-6Al-4V Grade 5 titanium, every exhaust system is precision-formed, mandrel-bent, CNC-machined, and hand TIG-welded to ensure exceptional durability, corrosion resistance, lightweight performance, and OEM-quality fitment.

Designed around the factory underbody geometry, the system utilizes OEM mounting locations, brackets, and hangers for a true bolt-on installation with no cutting or welding required.

Key Features

• True dual 3-inch mandrel-bent cat-back exhaust system
• Long extended X-pipe for superior exhaust pulse balancing
• Improved exhaust flow and reduced backpressure
• Retains factory AMG exhaust valves and actuators
• Plug-and-play OEM valve control integration
• Operates through original AMG drive modes
• No aftermarket valve controller required
• Available in AISI 304 Stainless Steel or Ti-6Al-4V Grade 5 Titanium
• Precision CNC-machined components
• Hand TIG-welded construction
• OEM-style mounting brackets and hangers
• Direct bolt-on installation
• No cutting or welding required

Vehicle Fitment

Mercedes-AMG GLE 63 SUV (V167)
Model Years: Verify by VIN (V167 Generation)

Mercedes-AMG GLE 63 S SUV (V167)
Model Years: Verify by VIN (V167 Generation)

Mercedes-AMG GLE 63 Coupe (C167)
Model Years: Verify by VIN (C167 Generation)

Mercedes-AMG GLE 63 S Coupe (C167)
Model Years: Verify by VIN (C167 Generation)

Engine

• 4.0L Twin-Turbocharged V8 (M177)

Exhaust Architecture

• True dual 3-inch exhaust routing
• Long extended X-pipe crossover
• Progressive bank-to-bank pulse blending
• High-flow rear exhaust section
• Optimized turbocharged exhaust flow
• Mandrel-bent tubing for consistent internal diameter

Valve Control

• Retains factory AMG exhaust valves
• Retains OEM valve actuators and electronics
• Fully compatible with factory drive modes
• Automatic operation through AMG vehicle settings
• No additional electronic controllers required

Material Options

AISI 304 Stainless Steel

• Outstanding corrosion resistance
• Excellent long-term durability
• Deep, rich AMG V8 tone
• Ideal for daily-driven vehicles

Optional Ti-6Al-4V Grade 5 Titanium

• Significant weight reduction
• Exceptional heat resistance
• Sharper, more responsive exhaust note
• Exotic motorsport-inspired acoustics
• Premium lightweight construction

Estimated Performance Benefits

• Horsepower Increase: +12–20 HP
• Torque Increase: +15–25 lb-ft
• Reduced exhaust backpressure
• Faster turbo spool response
• Improved throttle response
• Enhanced exhaust scavenging
• Stronger mid-range acceleration

Manufacturing

• Precision-formed tubing
• Mandrel-bent construction
• CNC-machined flanges
• Hand TIG-welded fabrication
• OEM-quality fitment and alignment
• Individually inspected before shipping

Installation

• 100% bolt-on design
• Utilizes factory mounting locations
• No cutting or welding required
• Professional installation recommended
• Fully reversible installation

Sound Characteristics

Factory Valves Closed

• Smooth and refined luxury sound
• Comfortable highway cruising
• Minimal cabin drone
• Noticeably deeper than stock

Factory Valves Open

• Aggressive AMG V8 soundtrack
• Deeper exhaust tone
• Stronger turbocharger acoustics
• Sharper acceleration response
• Rich, continuous exhaust note through the extended X-pipe
• Exotic high-RPM harmonics with enhanced V8 character

Why Choose the Yonristic Performance Exhaust?

The Yonristic Mercedes-AMG GLE 63 / GLE 63 S Valved Performance Exhaust System is engineered for enthusiasts who want more than simply increased volume. By combining a true dual 3-inch exhaust layout, extended X-pipe technology, OEM valve integration, and premium stainless steel or titanium construction, it delivers a perfectly balanced upgrade that enhances performance, preserves factory functionality, and gives the AMG twin-turbo V8 the commanding soundtrack it was always meant to have.