2017-2025 BMW G29, Z4 M40, 30i 3.0L,2.0L, Catback T304 Stainless Steel Carbon Fiber 4.0 Inch Outlet Tips Valvetronic Designs

The Valvetronic Designs Valved Exhaust System for the BMW G29 Z4 M40i is the ultimate upgrade for enthusiasts who demand both performance and versatility. Developed from our extensive R&D on B58-powered platforms—including the Supra and M340i—this system transforms the Z4’s sound and performance, unlocking the true potential of BMW’s celebrated inline-six.

• Brushed T304 stainless steel
• Single 3.5" midsection transitioning into dual 3" mandrel-bent runs for optimal exhaust scavenging and reduced backpressure.
• Electronic-actuated valves for rapid and reliable operation
• 11.1 lbs lighter than the factory exhaust
• Paired With Signature Real Carbon Tips

What's Included

Valved catback exhaust system, Valve controller kit included, and Valvetronic carbon fiber tips

Features & Components

Maximum Flow Design: Single 3.5" midsection transitioning into dual 3" mandrel-bent runs for optimal exhaust scavenging and reduced backpressure

Installation Notes

Direct bolt-on installation cat-back replacement to OEM mounting points.

Fitment

2017-2025 BMW Z4

Our turbo specifications are built for maximum durability under high load. Check the manual for exact torque tolerances.

In-stock items ship within 24-48 business hours. Orders over $599 qualify for free standard ground shipping in the contiguous US.

We accept returns on unused items in original packaging within 30 days. Contact our support team for an RMA.