Valvetronic Valved Race Exhaust System for Porsche 911 Turbo 991.1 / 991.2Porsche 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 performancebut 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,

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

• 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.

• Valves Closed: Flow is routed through two quad-chambered mufflers for a substantial drop in volume and a calm cabin demeanor.

• Center X-Pipe: Smooths pulse interaction, kills drone, and adds a polished, high-frequency character throughout the rev range.

Performance & Engineering

• CFD-Validated Manifolds: Optimized runner geometry improves pulse energy, response, and tone.

• Grade 5 Titanium Construction: Extreme strength-to-weight with superior heat resistance.

• Vacuum-Actuated Valves: Instant, reliable control of volume and character.

• Precision TIG Welds: Hand-finished for durability and a showpiece finish.

• Weight Savings: 9.5 lb lighter than the factory system.

• 100% Reversible: Bolt-on design—return to stock anytime.

Visual Details

• Signature Tips: Premium finishes that complement the 991 Turbo’s rear profile.

Fitment

• 2014–2019 Porsche 911 (991) Turbo

• 2014–2019 Porsche 911 (991) Turbo S