Description
**Sport Cats**
Introducing the ultimate header system for your Porsche 718 GT4 RS, designed with over 30 years of Porsche engineering expertise. The Rennkraft® Long Tube Header System is the pinnacle of exhaust performance, engineered to provide unparalleled power gains, enhanced exhaust sound, and uncompromised durability.
Innovative Design for Maximum Power Our system begins with a strategic relocation of the primary catalytic converter behind the rear axle, creating the space necessary for true long tube headers. This innovative design replaces the restrictive factory 700 cell ceramic catalytic converter with a high-performance HJS 200 cell tri-metallic sport catalytic converter, drastically improving exhaust flow and power output without triggering a Check Engine Light (CEL). The result? A significant increase in horsepower and torque that you can feel with every throttle push.
Switch Between Track and Street with Ease The Rennkraft® system features a modular design, allowing you to easily swap between the HJS sport catalytic converters and cat bypass pipes using our patented quick-release V-band clamps. Whether you're prepping for a day at the track or driving on the street, this system gives you the flexibility to optimize performance for any situation. Additionally, our advanced bi-layer heat shielding, capable of withstanding temperatures up to 2400°F (1300°C), dramatically reduces radiant heat and protects surrounding components, ensuring your vehicle’s reliability even under extreme conditions.
Unmatched Sound and Performance Unleash the full potential of your GT4 RS with a sound that matches its performance pedigree. Our headers, paired with the factory muffler, deliver an aggressive, deep exhaust note. For an even more exhilarating experience, pair this system with our Valvetronic X-Pipe to achieve a high-pitched, race-inspired sound, all while maintaining the ability to control volume with the Porsche Sport Exhaust (PSE) button.
Proven Power Gains The Rennkraft® Long Tube Header System is the most powerful upgrade available for the GT4 RS. Expect to see maximum gains of 48 HP and 54 ft/lbs of torque at 4700 RPM, with a peak power increase from 456 to 490 HP at the wheels—a staggering 57 HP gain at the crank. This performance boost transforms your GT4 RS into a true track weapon with street-legal capabilities.
Key Features:
- Compatibility: Fits all Porsche 718 GT4 RS models (2022+).
- Power Increase: Adds +57 HP at the crank and +48 WHP (wheel horsepower), with a +64 ft/lbs torque gain at 4700 RPM.
- Weight Savings: Saves 5 lbs / 2.3 kg with sport cats and 13 lbs / 5.9 kg with cat bypass compared to the stock system.
- High-Quality Construction: CNC mandrel-bent T304 stainless steel, investment cast stainless steel header flanges, and bi-layer ceramic fiber heat shielding.
- Modular System: Quick-swap between HJS catalytic converters and cat bypass pipes with patented V-band clamps.
- Premium Catalytic Converters: German-made EMITEC HJS HD tri-metallic 200-cell catalytic converters for maximum performance and emissions compliance.
- No CEL Guaranteed: No check engine light with sport cats installed (excluding Europe).
- Easy Installation: Simple bolt-on installation with no cutting or welding required.
- Lifetime Warranty: Backed by Fabspeed’s Lifetime Warranty for ultimate peace of mind.
Important Usage Note: This product is intended for closed track events and off-road use only. It is not California Air Resources Board (CARB) or EPA certified, and may trigger check engine lights on OBD2 vehicles when using cat bypass pipes. Ensure compliance with local, state, and federal laws before purchasing and installing.
Transform your Porsche 718 GT4 RS with the Rennkraft® Long Tube Header System—experience unmatched power, sound, and performance today.
