Valvetronic Designs Valved Race Exhaust System for 991 Porsche 911 Turbo / Turbo S [POR.991.TUR.VSES.FFH.TI]

Valvetronic Designs Valved Race Exhaust System for 991 Porsche 911 Turbo / Turbo S [POR.991.TUR.VSES.FFH.TI]

Valvetronic Designs acknowledges the 991 Turbo as the all-around benchmark yet notes the stock soundtrack falls short. Its solution begins at the source with CAD-designed, CFD-validated exhaust manifolds that sharpen pulse timing and raise pitch for a cleaner, more motorsport-inspired note. Downstream, a valved titanium rear section delivers dual personalities on demand—raw and unfiltered when desired, refined and comfortable when required.

Sound Dynamics

• Valvetronic Designs’ system gives the 991 Turbo two distinct personalities: with the valves open, post-turbo gases travel roughly 13 inches straight to atmosphere for an unfiltered, razor-edged Porsche wail—crisp at the top end with assertive shift pops; with the valves closed, flow is directed through dual quad-chamber mufflers for a substantial reduction in volume and a calm, composed cabin. A center X-pipe smooths pulse interaction, eliminates drone, and layers a polished, high-frequency character across the rev range.

Performance & Engineering

• Valvetronic Designs employs CFD-validated manifolds with optimized runner geometry to enhance pulse energy, response, and tone, pairs them with Grade 5 titanium for extreme strength-to-weight and superior heat resistance, and integrates vacuum-actuated valves for instant, reliable control of volume and character. Precision TIG welds are hand-finished for durability and a showpiece presentation, the system trims 9.5 lb versus stock, and the bolt-on architecture is 100% reversible for a return to factory at any time.

Features

• CAD-designed, CFD-validated manifolds sharpen pulse timing, raise pitch, and improve response
• Valved Grade 5 titanium rear section delivers dual personalities on demand
• Open mode, 13 in post-turbo path to atmosphere for an unfiltered, razor-edged Porsche wail and crisp overrun
• Closed mode, dual quad-chamber mufflers for major volume reduction and a calm, composed cabin
• Center X-pipe smooths pulse interaction, reduces drone, and adds high-frequency polish across the rev range
• Vacuum-actuated valves for instant, reliable volume and character control
• Precision, hand TIG-welded fabrication with showpiece finish
• 9.5 lb lighter than OEM exhaust

Applications

• Porsche 911 Turbo: 991 (2014-2019) [3.8L F6 TT]
• Porsche 911 Turbo S: 991 (2014-2019) [3.8L F6 TT]

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.