VCTR Performance Mercedes-AMG E63/GT63 M177 Catless Downpipe Kit

Overview

The Mercedes-AMG M177 factory downpipes carry an OPF filter that is the primary exhaust restriction on E63 and GT63 applications. This catless kit removes the OPF entirely — significantly opening the exhaust path from the twin turbos and supporting tuned M177 power targets.

Why Upgrade?

• Removes the primary restriction in the factory post-turbo exhaust path
• Improved turbo spool — the turbo recovers and builds pressure faster
• More defined exhaust tone under load
• Stainless steel construction for longevity
• Provides the foundation for meaningful power gains on a tuned map

Engineering Focus

SS304 stainless steel with integrated heat shield. The OPF sections are deleted and replaced with free-flowing downpipe sections — a direct improvement in post-turbo exhaust flow on M177 applications.

Fitment

Compatible with:

• Mercedes-AMG E63 W213 M177 (2020+)
• Mercedes-AMG GT63 M177 (2020+)

Catless unit — for off-road and motorsport use. Engine management tuning is strongly recommended post-installation.

What's Included

• Catless downpipe assembly (pair)
• Heat shield
• Supplied gaskets and installation hardware

Specifications

• Material: SS304 Stainless Steel
• Catalyst: None (OPF delete)
• Features: Heat shield included
• Engine: M177 4.0T V8 biturbo
• Fitment: OEM flange replacement

Delivery & Support

Your order is carefully inspected before dispatch and backed by VCTR Performance support. For product availability, shipping estimates or fitment assistance, contact our team.