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Valvetronic Designs

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

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

$5,999.00 USD
$7,999.00 USD $5,999.00 USD
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Material

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

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ECU tuning is the process of adjusting the engine control unit's software to enhance vehicle performance, efficiency, or fuel economy.

It can, depending on the manufacturer. Many warranties do not cover modifications like ECU tuning.

Use the highest octane fuel recommended for your specific tune to ensure optimal performance and safety.

Yes, a properly tuned car can be used daily, as long as the tune is tailored for reliable, everyday driving.

CPC (Central Powertrain Controller) and TCU (Transmission Control Unit) manage your vehicle's powertrain and transmission systems, respectively.

Map switching allows you to change between different tuning settings (maps) for varying driving conditions without having to retune the ECU.

Yes, if done by a professional using proper tools, ECU tuning is generally safe for your vehicle.

ECU tuning works by modifying the software that controls engine parameters like fuel mixture, ignition timing, and boost pressure to optimize performance.

The process of installing a tune depends on the vehicle’s make and model. Some tunes are installed by connecting a tuning device to your car’s OBD-II port and uploading the tuned software, others may require ECU unlock.

Stage 1 is for vehicles with no modifications, stage 2 is for vehicles with bolt-on upgrades or downpipes installed.

We offer post-installation support, troubleshooting, and guidance on using your tuning software and hardware.

Choose tuning software that is compatible with your vehicle, has good reviews, and suits your performance goals (e.g., reliability vs. max power).