Description:

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. Valvetronic’s 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.

Features:

Fitment: 2014–2019 Porsche 911 (991) Turbo; 2014–2019 Porsche 911 (991) Turbo S
Material: Grade 5 Titanium
System Type: Valved cat-back exhaust system
Valves: Vacuum-actuated exhaust valves
Control: Wireless key fob remote
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
Weight Savings: 9.5 lb lighter than the factory system
Included: Titanium valved cat-back exhaust system, Vacuum valve control kit with key fob remote, and all necessary clamps and hardware
Manufacturer Part Number: POR.991.TUR.VSES.TI
Warranty: Lifetime of Ownership limited warranty on 304 stainless steel and titanium exhaust tubes and welds (including penetrating rust); 3-year limited warranty on mufflers and resonators; 1-year limited warranty on valves, vacuum pots, remotes, electronics and tip finish (original purchaser only)

Sound Clip 1

Sound Clip 2

Valve Troubleshooting Guide

Valvetronic Warranty & Returns Policy

SKU’S:
POR.991.TUR.VSES.TI