Porsche Rennkraft Modular Headers With HJS Catalytic Converters For Porsche 981 Boxster Spyder (2016), 981 Cayman GT4 (2016) Models.

Unleash Street Performance and Track Dominance with Patented Modularity

These RENNKRAFT Modular Headers represent the ultimate exhaust solution for your Porsche Cayman or Boxster. Our patented design features a quick-release V-band connector, empowering you to effortlessly swap between our high-performance German-made HJS 200-cell catalytic converters for street use and cat bypass "straight pipes" for maximum track performance. RENNKRAFT meaning "race power" in German, embodies the innovative precision engineering that delivers true street and racetrack functionality in one exceptional package.

SOUND:

When equipped with our 200-cell catalytic converters, you'll experience a significantly louder and more raw exhaust note. Higher frequency tones become more pronounced, and off-throttle burbles are more robust and clearly defined. Installing the cat bypass pipes transforms the sound into something akin to a car.A far cry from a typical street-legal Porsche. While the volume remains manageable, the sound becomes incredibly aggressive and race-bred, completely altering the character of your car.

Key Benefits:

• Track Durability: Easily switch to cat bypass pipes for track events, preventing the degradation of your high-performance catalytic converters under intense racing conditions.
• Optimized Flow: Features F1-style high-velocity merge collectors for maximum exhaust scavenging and flow.
• Perfect Bolt-On Fitment: Engineered from precise 3D scans of the OEM headers, guaranteeing a perfect and hassle-free bolt-on installation.
• Premium Catalytic Converters: Utilizes German-made HJS HD trimetallic 200-cell EURO 6 homologated catalytic converters, ensuring the best possible performance and long-term reliability.
• Maximum Flow Design: Incorporates the largest catalytic converters that will fit within the factory location for unrestricted exhaust flow.
• Near Straight-Pipe Performance: Flows an impressive 93% of a 2.5-inch straight pipe when equipped with the HJS catalytic converters.
• Guaranteed No CEL (with Sport Cats): Optimized for maximum performance without triggering a catalyst-related check engine light when the Sport Cats are installed.
• No ECU Tune Required: Designed to deliver significant performance gains without necessitating an aftermarket ECU tune.
• Universal Exhaust Compatibility: Will seamlessly integrate with any brand of aftermarket exhaust system designed to work with the factory headers.
• Expert Engineering: Backed by over 25 years of dedicated experience in air-cooled and water-cooled Porsche design and engineering, resulting in meticulously hand-crafted headers.
• Simple DIY Installation: Designed for straightforward do-it-yourself bolt-on installation, requiring no cutting or welding

Returns subject to a 25% restocking fee.