Valved Exhaust – Porsche 911 (991 Turbo)

It took us 8 years and more than sixty prototypes to reach our goal: a meaningful sound with no resonance. The valve exhaust lets you switch from a soft sound to a very sporty one at the press of the switch. With turbo engines the sound builds under load: at a standstill it stays discreet. All accessories are included (electrical and air harnesses).

Fitting

• Strictly original interfaces (inlets, outlets, dimensions): direct replacement of the original part
• Mounts directly after the turbos
• Fitting time: 8 hours including removal (quicker if the old exhaust is in good condition). No need to remove the rear bumper
• A lift is essential; tighten all nuts progressively once the exhaust is fully in place
• Fitting kit included: straps, gaskets, stainless bolts, stainless lock nuts, high-temperature copper grease