Milltek Valved Cat-Back Exhaust - Mercedes G63 W463 - Polished Tips - SSXMZ159

Milltek valved cat-back exhaust system for Mercedes-AMG G63 W463 (non-GPF models). Direct factory fitment using OEM hangers, no modifications required. T304L stainless steel construction with mandrel-bent piping and hand-finished polished tailpipe trims. Electronically controlled valve allows you to switch between refined cruising and full-throttle aggression-seamless OE valve integration.

Available in resonated and non-resonated configurations. Resonated version tunes the OE resonance point for a refined tone while eliminating drone on the motorway; non-resonated delivers maximum character for closed-course and track use. Both dyno-tested for power and torque gains across the RPM band. T304L construction ensures longevity in all weather conditions.

• Resonated cat-back: engineered tone with OE-like refinement
• Non-resonated cat-back: full character for track and performance driving
• Valved operation: OEM valve compatibility, intelligent throttle response
• Polished stainless steel trims: factory-quality finish
• Direct OEM fitment: uses factory hangers and mounting points

Designed and manufactured in the UK with 40+ years of performance exhaust heritage. Tested at the Nurburgring.

Specifications

• Pipe diameter: 63.5mm (2.50")
• Fitting time: 0.5 to 0.5 hours, including removing the factory system

Fitment

• Mercedes > G-Class > G63 (W463) 4.0 Bi-Turbo V8 > 2019 to 2023

• Free US shipping on orders over $250.
• Free pickup at our Dallas shop, usually ready within 24 hours.
• Unused parts can be returned within 30 days. Tunes, opened electronics, merch and installed parts are final sale.
• Want it installed? Book the install at thegbmotors.com.

Full details are on our shipping and returns page.