Porsche 911 Carrera / S / GTS (991.1) – Valved Exhaust System

Rich F1 Sound • Lightweight Construction • OEM-Style Valve Control

Overview

Welcome to the Valvetronic Designs Catback Exhaust System for the Porsche 991 platform. Engineered from the ground up, this system is built to deliver a truly rich F1-inspired sound while maintaining comfort and refinement when cruising with the valves closed. Featuring a large center X-pipe, the system creates a smooth exhaust flow, balancing aggression with sophistication for the perfect 991 soundtrack.

Sound Dynamics

• Valves Open – Exhaust gases flow with minimal restriction, unleashing a sharp, high-pitched F1-style sound that transforms your Porsche into a motorsport machine.

• Valves Closed – Sound is tamed significantly, reducing unwanted cabin frequencies and creating a calm, refined experience for daily driving.

• The system strikes the perfect balance between raw emotion and everyday usability, offering maximum enjoyment without compromise.

Features

• Available in Anodized Gold T304 Stainless Steel or Blue Burnt Titanium

• Vacuum-actuated exhaust valves with controller for OEM-like operation

• Standalone valve control option for vehicles without factory valves

• 21.8 lbs lighter than the factory exhaust (T304 Stainless version)

• Fully mandrel-bent piping for maximum exhaust flow

• Precision TIG welds for strength and durability

• 100% reversible – always able to return to stock configuration

Fitment

• 2012 – 2016 Porsche Carrera / Carrera S / Carrera GTS

• 2014 – 2016 Porsche Targa 4 / Targa 4S / Targa 4 GTS

• Also fits convertible models

Valvetronic Designs shipping & returns

• Returns: new, unused and uninstalled parts within 30 days of purchase, in the original packaging, with a return authorization (RMA) number issued first.
• Restocking fee: 25% on all non-warranty returns; the customer pays return shipping unless the part qualifies for warranty.
• Sound: exhaust sound and tone are personal taste and are not grounds for a return or warranty claim.
• Warranty: lifetime on stainless and titanium tubes and welds, 3 years on mufflers and resonators, 1 year on valves, remotes, electronics and tips. If a problem shows up after install, contact us before removing the part.

To start a return or ask a question, contact us with your order number.