Valvetronic Designs Valved Sport Exhaust System for 991 Porsche GT3 / GT3 RS

Valvetronic Designs Valved Sport Exhaust System for 991 Porsche GT3 / GT3 RS

Valvetronic Designs presents a system engineered to set a new benchmark in sound quality. Following over eighteen months of focused R&D, it delivers an exhaust experience that must be heard to be believed. When Porsche introduced the DFI engine in the 991 GT3, some feared it would lack the Mezger’s soul; while the 9,000 rpm flat-six impressed, the factory setup still leaves enthusiasts wanting more rawness and an authentic F1-style edge. To elevate the GT3 experience, Valvetronic Designs employs 2.5-inch piping, a large stamped cross-section X-pipe, and loop sections to extend the exhaust path—producing the high-pitch, motorsport tone purists crave. Paired with Valvetronic Designs’ free-flow headers, the 991 transforms into one of the most exhilarating-sounding machines on the road.

Sound Dynamics

• Valvetronic Designs tunes this exhaust to emulate Porsche’s RSR race car: with the valves open, it delivers an uncompromising, F1-inspired crescendo to 9,000 rpm with aggressive upshift flames and pure motorsport drama; with the valves closed, volume is subdued for early starts and long motorway drives, eliminating cabin drone to keep the experience refined.

Features

• Full 2.5-inch system from front to back
• Large stamped cross-section X-pipe for F1 tone
• Added loop sections for enhanced sound pitch
• Optional free-flow headers for maximum performance and sound quality
• Vacuum-actuated exhaust valves with factory-like operation
• Precision TIG welds for high strength and durability
• 100% reversible – always able to return to stock

Applications

• Porsche 991 GT3: 991 (2014-2019) [3.8L F6]
• Porsche 991 GT3 RS: 991 (2016-2019) [4.0L F6]

About Valvetronic Designs

Valvetronic Designs, based in Boyertown, Pennsylvania, is a leader in high-performance exhaust systems, dedicated to innovation, precision, and enhancing the driving experience. Specializing in bespoke solutions for luxury and performance vehicles such as Lamborghini, Ferrari, and Porsche, Valvetronic combines advanced engineering with meticulous craftsmanship to deliver unparalleled sound and performance. With proprietary technologies like free-flow configurations and double X-pipe designs, their exhaust systems set new benchmarks for exotic and race-inspired tones. Every product is designed and manufactured in-house, ensuring exceptional quality and tailored customization, from fitment precision to sound profiles. Driven by a passion for excellence, Valvetronic Designs strives to create the ultimate auditory and performance experiences for automotive enthusiasts worldwide.