Description
The ULTIMATE header system for the GT4RS is here! We took 30+ years of Porsche engineering experience and pulled out all the stops to design our RENNKRAFT® Long Tube Header System. After analyzing the factory system we decided to move the primary catalytic converter to behind the rear axle. This gave us the room to create true long tube headers while also ditching the factory 700 cell ceramic catalytic converter in favor of an HJS 200 cell tri metallic sport catalytic converter. The combination of a long tube header design and sport catalytic converter DRASTICALLY improves power and sound. This is all WITHOUT triggering a CEL (Check Engine Light) thanks to our heavy metal loaded high quality HJS catalytic converter. We also integrated our RENNKRAFT® system, which allows you to easily swap between cats and cat bypass by using the quick release v-band clamps (patented). So if you’re going to the track you can swap in cat-bypass pipes easily. The icing on the cake is our new bi-layer heat shielding that can withstand up to 2400F / 1300C and dramatically reduces radiant heat onto surrounding components like the rear shock body.
SOUND:
Unleash that GT3 derived powerplant on the world! These headers with sport cats turn the GT4 RS up to eleven. With the factory muffler still in place, you’ll be treated to an aggressive deep tone with the ability to turn the volume all the way down by turning off PSE (Porsche Sport Exhaust). Pair this system with our Valvetronic X-Pipe for an absolute ripping high pitched exhaust note while stilling having the ability to turn the volume down using the PSE button.
POWER:
The most powerful header system for the GT4 RS, period. Max gains of 48 HP and 54 ft/lbs of TQ are seen at 4700 RPM. That’s 53 HP at the crank! Peak power goes from 456 to 490 at the wheels. You’re going to feel the power that this system adds to your GT4 RS!
FEATURES:
- Fits all Porsche 718 GT4 RS Vehicles 2022+ worldwide
- This is 100% guaranteed to be the Worlds Very Best GT4RS Spyder RS complete engineered system. Best sound, maximum power, and maximum durability and best components.
- Adds +57HP at the crank and +48 WHP (WHP- means horsepower at the wheels) and +64ftlb torque /54 ft/lbs of TQ at 4700 RPM
- Saves 5 lbs / 2.3 KGs with cats and 13 lbs / 5.9 KGs with cat bypass when compared to the stock Porsche system
- Equal length headers with Formula 1 / Indy car style high velocity merge collectors
- Constructed from CNC mandrel bent T304 stainless steel- bent in house at Fabspeed on a UNISON limited defense quality all electric bender.
- Bi-layer heat shielding consisting of a ceramic fiber core and stainless steel shell
- Heat shielding can handle up to 2400F / 1300C
- Investment cast stainless steel header flanges for maximum flow and strength
- Modular RENNKRAFT® design that uses a V-band clamp so one can quickly swap between HJS catalytic converters and cat bypass
- Switching to cat-bypass for track events prevents catalytic converter degradation during all out competition racing abuse
- We use German imported EMITEC HJS HD tri-metallic 200-cell EURO 6 homologated catalytic converters for the best maximum performance gains, emissions compliance, and reliability
- Optimized for maximum performance with NO catalyst generated check engine light, guaranteed, when Sport Cats are installed (Not including Europe)
- Fabspeed was appointed as HJS Germany's EXCLUSIVE importer distributor for all of North & South America. BEWARE of any other USA company offering HJS catalytic converters.
- WHY? because there are HJS Counterfeited cats and black market HJS cats and you will have NO WARRANTY and or have lost your money.
- No ECU tune required
- Simple bolt-on installation, no cutting or welding required
- All Fabspeed performance products are backed by the Fabspeed Lifetime Warranty
Sport Catalytic Converter (STREET) - This product removes the OEM catalytic converters from the vehicle, and as such, is strictly intended for closed track events and off-road use only. This product contains a High-Flow Sport Catalytic Converter solely intended for track and race cars as it is NOT California Air Resources Board Certified and not EPA certified. You are hereby informed and warned to check your local, state, and federal laws before buying and installing these or any aftermarket parts to be sure whether usage is in violation. All installation-risk and use-risk is borne by the end-user and installer of these parts.
Cat Bypass (RACE) - This product removes the OEM catalytic converters from the vehicle, and as such, is strictly intended for closed track events and off-road use only. This product is or contains a Racing Cat Bypass Pipe, which will give you check engine lights on OBD2 cars. Racing Cat Bypass Pipes are solely intended for track and race cars as they are NOT California Air Resources Board Certified and not EPA certified. You are hereby informed and warned to check your local, state, and federal laws before buying and installing these or any aftermarket parts to be sure whether usage is in violation. All installation-risk and use-risk is borne by the end-user and installer of these parts.
Warranty
Our warranty terms are based on each manufacturer’s guidelines. Depending on the specific manufacturer, customers may be eligible to process warranty claims either directly with the manufacturer or through us. For detailed information or assistance with warranty inquiries, please contact our support team.
Shipping & Returns
Shipping time will be provided once your order has been processed. Please note that shipping options cannot be changed after your order has been placed.
For returns, kindly contact our support team for guidance. We'll walk you through the process and ensure everything goes smoothly.
Frequently Asked Questions
OEM (Original Equipment Manufacturer) parts are made by the vehicle’s original manufacturer and guarantee perfect fit and performance. Aftermarket parts are produced by third-party companies and may offer enhanced performance or cost savings, but compatibility should always be verified before purchase.
Yes, we work with a network of certified and approved workshops to ensure professional installation of your performance parts. Get in touch with us to find a recommended installer near you.
Yes, but it’s important to ensure they work together without causing performance issues. Some aftermarket parts are designed to complement OEM components, while others may require full system upgrades.
Yes, once your order is shipped, a tracking number will be emailed to you.
Orders can only be modified or canceled before they are processed. Please reach out to us as soon as possible.
If you're not completely satisfied with your purchase, you may return it within 7 days of receiving your order for a full refund, excluding delivery costs. Please note that this policy does not apply to special order parts. To qualify for a refund, items must be unused and returned in their original packaging.