BMW G2X Valved Axle-Back Exhaust System

Quad-Chambered Muffler, OEM Valve Integration, 3.5″ Tips

Overview

The Valvetronic Designs Valved Axle-Back for the BMW G2X platform brings the next evolution in sound customization. Inspired by our renowned F-Chassis systems, this setup offers the flexibility to run OEM valve integration, pair with additional exhaust modifications, or enjoy as a standalone upgrade—all without compromising on fit, finish, or tone.

TIG-welded from T304 stainless steel and designed to utilize factory mounting points and cut locations, the system delivers an OEM+ installation and appearance, with 3.5″ tips perfectly filling the rear bumper.

Sound & Control

• Valves Closed: All exhaust gases route through our precision-engineered quad-chambered muffler, delivering stock-level volume for early morning starts, stealthy commuting, and drone-free cruising.

• Valves Open: The muffler is bypassed entirely, freeing the exhaust flow for a deeper, more engaging tone without unwanted cabin drone.

Whether you keep your exhaust otherwise stock or pair it with free-flow components, the system adapts to deliver a driving soundtrack tailored to you.

Why Choose This System

• True OEM+ Fitment: Factory mounting points and cut locations for seamless installation.

• Customizable Sound: Works perfectly as a standalone upgrade or part of a full exhaust build.

• OEM Valve Integration: Operates through your BMW’s drive modes for instant control

Fitment

• 2019–2024 BMW 330i (G20)

• 2019–2024 BMW 430i (G22 / G23)

• Compatible with 330e (with modifications)

• Compatible with 2025 models (with modifications)

Features

• Fully mandrel-bent for maximum flow

• Precision TIG-welded for strength and durability

• Premium T304 stainless steel construction

• Customizable 3.5″ outlet tips for a refined OEM+ look

• OEM electronic valves with rapid open/close function

• Valve integration with factory drive modes

• Extension harness included for plug-and-play operation

• 100% reversible—return to stock at any time