Fabspeed Modular Headers with Sport Cats for 991.1 Porsche 911 Carrera / GTS / S

These modular headers are engineered as a versatile solution for Porsche 911 owners seeking both street and track capability. Fabspeed’s United States patented RENNKRAFT modular design incorporates a quick-release V-band connection, allowing effortless swaps between German-made HJS 200-cell catalytic converters and cat-bypass straight pipes for track use only. Translating to “race power,” RENNKRAFT encapsulates the system’s dual-purpose nature, delivering true street and motorsport functionality in a precisely engineered package. If an HJS catalyst ever fails, the patented layout allows for straightforward replacement of just the catalytic converter section. HJS German catalytic converters are European homologated, European certified, and US EPA compliant.

Sound

• Equipped with HJS German HD tri-metallic 200-cell catalytic converters, this system delivers a sportier, more aggressive exhaust note with a far more exciting overall character. Higher-frequency tones become more pronounced, while off-throttle burbles are fuller and clearer. When paired with bypass pipes for race track use only, it becomes an ultimate road racing system, offering a very aggressive, race-bred sound that transforms the personality of the car without becoming overwhelmingly loud.

Features

• Increased power by +25hp and 20ft/lbs
• Lightweight design saves 2lbs
• Modular system, quickly swap between setups
• F1 style high velocity merge collectors
• CNC mandrel-bent T304L stainless steel
• 3D scanned OEM headers for perfect fitment
• HJS HD tri-metallic 200-cell EURO 6 catalysts
• Flows 93% of a bypass configuration
• Simple DIY bolt-on installation
• Optimized for maximum performance with no CEL, guaranteed
• All Fabspeed performance products are backed by the Fabspeed lifetime warranty

Applications

• Porsche 911 Carrera: 991.1 (2012–2016)
  [MA1.04 – 3.4L F6]
• Porsche 911 Carrera S: 991.1 (2012–2016)
  [MA1.03 – 3.8L F6]
• Porsche 911 Carrera GTS: 991.1 (2015–2016)
  [MA1.03 – 3.8L F6]

Notes

• All Fabspeed products are expected to ship within one week of order, though timelines are often much quicker

About Fabspeed

Fabspeed Motorsport is situated in Fort Washington, Pennsylvania, within the United States of America. Their extensive 26,000 sqft. facility serves as a hub for various car clubs, including Porsche Club of America, Ferrari, McLaren, Lamborghini, and more. The company is renowned for its comprehensive approach to product development. They handle the entire process, from design and engineering to dyno testing, street trials, and racing assessments, ensuring the quality and performance of every item. Fabspeed also collaborates closely with race engine builders and tuners hailing from Italy, Germany, and the United States, resulting in the creation of the Ultimate Performance parts. To cater to their passionate global audience, Fabspeed meticulously crafts systems using aerospace-grade austenitic stainless steel, titanium, and carbon fiber materials, setting a standard for excellence in the industry.