Valvetronic Valved Race Exhaust System for Porsche 911 Turbo 991.1 / 991.2
Porsche 991 Turbo / Turbo S – Titanium Valved Exhaust System
Grade 5 Titanium • Center X-Pipe • True Motorsport Tone
Overview
The 991 Turbo is the benchmark for all-around performance—but like every turbocharged Porsche, the stock soundtrack falls short. Valvetronic Designs fixes that at the source. Our system starts with CAD-designed, CFD-tested exhaust manifolds to 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 you want it, refined and comfortable when you need it.
Sound Dynamics
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Valves Open: After the turbos, gases travel straight ~13 inches to atmosphere for an uncorrupted, razor-edged Porsche wail—crisp up top with aggressive shift pops.
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Valves Closed: Flow is routed through two quad-chambered mufflers for a substantial drop in volume and a calm cabin demeanor.
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Center X-Pipe: Smooths pulse interaction, kills drone, and adds a polished, high-frequency character throughout the rev range.
Performance & Engineering
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CFD-Validated Manifolds: Optimized runner geometry improves pulse energy, response, and tone.
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Grade 5 Titanium Construction: Extreme strength-to-weight with superior heat resistance.
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Vacuum-Actuated Valves: Instant, reliable control of volume and character.
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Precision TIG Welds: Hand-finished for durability and a showpiece finish.
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Weight Savings: 9.5 lb lighter than the factory system.
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100% Reversible: Bolt-on design—return to stock anytime.
Visual Details
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Signature Tips: Premium finishes that complement the 991 Turbo’s rear profile.
Fitment
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2014–2019 Porsche 911 (991) Turbo
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2014–2019 Porsche 911 (991) Turbo S