Porsche 991 GT3,GT3RS 3.8,4.0L, Catback, Grade 5 Titanium, 4.0" Tips

This system is truly unparalleled in sound quality. After over a year and a half of dedicated research and development, we’ve engineered an exhaust experience that must be heard to be believed. When Porsche introduced the DFI engine in the 991 GT3, many feared it would lack the soul of the legendary Mezger. But with a screaming 9,000 RPM flat-six, Porsche delivered in spades. Still, the factory setup leaves much to be desired when it comes to rawness and that elusive F1-style sound. At Valvetronic Designs, we’ve crafted a system that elevates your GT3 experience. Featuring 2.5-inch piping, a large stamped cross-section X-pipe, and added loop sections to lengthen the exhaust path, this setup achieves the high-pitch motorsport tone enthusiasts crave. Combine it with our free-flow headers, and your 991 becomes one of the most exhilarating sounding machines on the road.

• Grade 5 Titanium
• Full 2.5-inch system from front to back
• Vacuum-actuated exhaust valves with factory-like operation
• Grade 5 Titanium construction for maximum weight savings and strength
• 2.5" mandrel-bent tubing for maximum flow

What's Included

Titanium Porsche 991 GT3 / GT3 RS – Valved Sport Exhaust System, with valve controller and wiring harness

Features & Components

Valves Open: An uncompromising sound experience with aggressive flames on upshifts and a crescendo that builds all the way to the 9000 RPM redline. Pure F1-inspired drama

Installation Notes

Direct bolt-on installation with no permanent modifications required.

Fitment

2014 - 2019 Porsche 991 GT3 2016 - 2019 Porsche 991 GT3 RS Porsche GT3, GT3RS

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.