Description

Mach5 Headers for the Porsche 911 Carrera S and GTS (991.1) are configured for the 3.8-litre naturally aspirated engine used in the listed 2011-2015 Coupe and Cabriolet applications. Replacing the factory header section gives customers a dedicated foundation for a more responsive, more distinctive exhaust package.

Two configurations are available. Race headers prioritise the least-restricted competition-oriented layout, while sports-catalyst headers add high-flow catalytic converters for customers who want a catted solution. The selection changes both the supplied hardware and price, so choose the version that matches the vehicle, intended use and local requirements.

• Porsche 911 Carrera S / GTS 991.1 fitment
• For the 3.8-litre naturally aspirated engine
• Coupe and Cabriolet compatibility
• Race-header or sports-catalyst-header options
• Matched left-and-right header assembly

Fitment note: Confirm the exact model, model year, engine, factory emissions equipment and any existing exhaust modifications before ordering.

Important: Cat-bypass, decat and particulate-filter-delete components may not be legal for public-road use and can trigger warning lights or require calibration. Confirm local emissions, registration and noise requirements before ordering. Professional installation is recommended.