What makes the Fabspeed RENNKRAFT Modular Headers modular?

The RENNKRAFT Modular Headers use a patented quick-release v-band connector, so the same header primaries accept either the German HJS 200-cell Sport Cat section or the competition pipe section. Owners can run the Sport Cats on the street and swap to competition pipes for the track without replacing the whole system.

How much power do they add?

On Fabspeed's dyno they add 31 wheel horsepower and 19 ft-lbs of torque with the HJS Sport Cats, or 33 wheel horsepower and 24 ft-lbs with the competition pipes, on the 4.0-liter naturally aspirated flat-six. They also trim about 2 pounds with the Sport Cats or 7 pounds with the competition pipes.

Do they fit the 718 GT4, GTS and Spyder?

Yes. They are a direct fit for the 2020 and newer 982 Porsche 718 Cayman GT4 and GTS and the 718 Boxster Spyder and GTS, all with the 4.0-liter flat-six. They are not listed for the GT4 RS or Spyder RS, which use a different exhaust.

No, not with the Sport Cats configuration, which keeps the car emissions-scrubbed and runs on the factory calibration. The competition pipe configuration is intended for closed-course and off-road use, where you may choose to add a supporting tune.

What configurations are available?

You can order the headers with the HJS Sport Cats, with the competition pipes, or with both sections so you can swap between them. All three use the same header primaries and F1-style merge collectors; you choose the configuration at checkout.

Are they street legal?

The Sport Cats configuration keeps the car emissions-scrubbed, but the headers are not CARB approved, so they are not legal for sale or use in California. The competition pipes are for closed-course and off-road use only. Check your local regulations before installing.

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Description

Fabspeed RENNKRAFT Modular Headers for 982 Porsche 718 Boxster GTS and 718 Cayman GT4 / GTS / Spyder

The modular RENNKRAFT headers present an ideal solution for any street-driven 4.0-liter Cayman or Boxster. Featuring a patented modular design, these headers incorporate a quick-release v-band connector, enabling owners to effortlessly interchange between our German-made HJS 200-cell cats and competition pipes for track use. Translated from German, Rennkraft means “race power,” and these distinctive headers embody true street and racetrack functionality within an innovatively engineered package.

Sound

When equipped with Fabspeed’s 200-cell cats, drivers can expect a significantly louder exhaust note characterized by a more raw and aggressive sound. The higher frequency tones become more distinct, while deceleration burbles gain in robustness and transparency. With the installation of competition pipes, drivers can anticipate a sound reminiscent of a 911 CUP car rather than a typical Porsche street car, offering a volume that is assertive yet not overwhelming, with an aggressive and race-bred character. Even with the over axle GPF delete pipes installed, the stock muffler ensures there is no drone whatsoever.

Power

Through extensive dyno development, it was determined that mid-length headers yield the highest power gains across the entire power band. Without any tune, in comparison to a stock vehicle, there was an increase of 31whp and 19ft/lbs at 7400rpm with sport cats, and 33whp and 24ft/lbs at 7200rpm with competition pipes installed. This translates to a remarkable gain of 33hp and 36hp, respectively, at the crankshaft. Additionally, peak horsepower rose from the baseline of 383whp to 405whp with the installation of HJS sport cats, and reached 409whp with competition pipes.

Features

Impressive dyno proven power gains of 31whp and 19ft/lbs with the sport cats and 33whp and 24ft/lbs with competition pipes
Save 2lbs with sport cats and 7lbs with competition pipes compared to the factory headers
Modular design that uses a v-band clamp so one can quickly swap between configurations
F1 style high velocity merge collectors
Designed from 3D scans of the OEM headers for perfect bolt-on fitment
Built 100% in house at Fabspeed Motorsport USA in Fort Washington, PA
Constructed from CNC mandrel-bent T304L stainless steel
German-made HJS HD tri-metallic 200-cell EURO 6 homologated cats
Optimized for maximum performance with no check engine light, guaranteed (sport cats)
No ECU tune required
Will fit with any brand of aftermarket exhaust system designed to work with the factory headers
Simple bolt-on installation, no cutting or welding required
All Fabspeed performance products are backed by the Fabspeed lifetime warranty

Applications

Porsche 718 Boxster GTS: 982 | 2020-present | 4.0L Flat-Six
Porsche 718 Boxster Spyder: 982 | 2020-2023 | 4.0L Flat-Six
Porsche 718 Cayman GT4: 982 | 2020-2023 | 4.0L Flat-Six
Porsche 718 Cayman GTS: 982 | 2020-present | 4.0L Flat-Six

Notes

Choose your configuration at checkout: Sport Cats, competition pipes, or both sections
The Sport Cats configuration keeps the car emissions-scrubbed and needs no ECU tune
The competition pipes are intended for closed-course and off-road use only
Not CARB approved and not legal for sale or use in California or other states requiring CARB certification
Finish the look with the Fabspeed Deluxe Exhaust Tips for the 718 GT4, GTS and Spyder
Explore the full Fabspeed range for the 718

Frequently Asked Questions

What makes the Fabspeed RENNKRAFT Modular Headers modular? The RENNKRAFT Modular Headers use a patented quick-release v-band connector, so the same header primaries accept either the German HJS 200-cell Sport Cat section or the competition pipe section. Owners can run the Sport Cats on the street and swap to competition pipes for the track without replacing the whole system.
How much power do they add? On Fabspeed’s dyno they add 31 wheel horsepower and 19 ft-lbs of torque with the HJS Sport Cats, or 33 wheel horsepower and 24 ft-lbs with the competition pipes, on the 4.0-liter naturally aspirated flat-six. They also trim about 2 pounds with the Sport Cats or 7 pounds with the competition pipes.
Do they fit the 718 GT4, GTS and Spyder? Yes. They are a direct fit for the 2020 and newer 982 Porsche 718 Cayman GT4 and GTS and the 718 Boxster Spyder and GTS, all with the 4.0-liter flat-six. They are not listed for the GT4 RS or Spyder RS, which use a different exhaust.
Do they need a tune? No, not with the Sport Cats configuration, which keeps the car emissions-scrubbed and runs on the factory calibration. The competition pipe configuration is intended for closed-course and off-road use, where you may choose to add a supporting tune.
What configurations are available? You can order the headers with the HJS Sport Cats, with the competition pipes, or with both sections so you can swap between them. All three use the same header primaries and F1-style merge collectors; you choose the configuration at checkout.
Are they street legal? The Sport Cats configuration keeps the car emissions-scrubbed, but the headers are not CARB approved, so they are not legal for sale or use in California. The competition pipes are for closed-course and off-road use only. Check your local regulations before installing.

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.

Additional Information

The Bulletproof Automotive website contains many thousands of products purchased in multiple different currencies. All of the prices are entered manually and accurately at the time of entry. Due to the consistently fluctuating international exchange rates, at times prices may not be able to be honored at their original intended rate. We apologize for any inconvenience this may cause, unfortunately our website is unable to compensate dynamically for what can at times be volatile changes in the cost of items due to currency values fluctuating, changes in prices from suppliers, changes in shipping and import duties, and other factors. Rest assured that any order you place on line will be at zero risk to you in this area. If in the event your order cannot be fulfilled at the original intended website price we will offer you a 100% refund, no questions asked. We will continue to do our best to maintain updated prices and we will always continue to offer our price match guarantees as well to ensure our prices are always the best for you. In short, prices may change without notice. It is always advised to give us a call prior to placing your order online to confirm availability and to confirm current pricing.

Shipping Policy

Items that are in stock in the US, either at Bulletproof’s warehouse or at a supplier’s warehouse, are generally delivered within 7-10 days. Special order items from overseas take considerably longer. As a courtesy Bulletproof offers delivery estimates to our customers which take into consideration manufacturer availability and shipping schedule. These estimates represent our best guess based on previous orders from the manufacturer and do not in any way imply a guaranteed delivery window. Many manufacturers work in a “just in time” inventory system and often take 2-20+ weeks to produce an item once an order is submitted. All deliverable items are then sent to our Japanese warehouse. Bulletproof ships a minimum of one full ocean freight container every month from Japan, oftentimes more than one a month. Ocean freight takes an average of 4 weeks. Typically it breaks down to one week in Japan for paperwork and customs, two weeks by boat and one week in US customs/clearance. Due to the wide number of variables between manufacturer and shipping schedules, delivery estimates are simply just that – estimates. We attempt to estimate conservatively and we usually deliver faster than our estimates suggest. It is not Bulletproof’s policy to guarantee delivery time of any special order item, this is impossible for us to do. By ordering you acknowledge that there is no required delivery ETA and an order may not be canceled or altered due to manufacturing or shipping delays, all ETA’s are provided as a best guess only. Please review the full Terms & Conditions here.

BP Pricing Difference

We do pricing a little differently on our JDM brands and we believe in making things simple and clear. No hidden fees or surcharges. Every price you see includes the shipping cost to our office in Los Angeles, California and all the associated taxes/duties/fees for bringing the products into the US. The only shipping you ever pay is from our facility in the US to your location. Be wary of resellers that don’t include the cost of international shipping in their pricing on JDM parts. While we believe we’ll always have the lowest all-in price on JDM products, we offer a price match guarantee for all authentic parts purchased from authorized dealers as well. For many international customers, it’s much more affordable to ship from the USA than from Japan directly, as the air freight and ocean freight costs are typically much less. However, for customers looking to ship directly from Japan outside of North America, or domestically in Japan, we can provide pricing specifically for that scenario. Please do not hesitate to contact us with any pricing questions or concerns. Please email us at sales@bulletproofautomotive.com with any inquiries.

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Fabspeed RENNKRAFT Modular Headers for 982 Porsche 718 Boxster GTS and 718 Cayman GT4 / GTS / Spyder [FS.POR.718GT4.MDLRHDR.XXX]

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Fabspeed RENNKRAFT Modular Headers for 982 Porsche 718 Boxster GTS and 718 Cayman GT4 / GTS / Spyder

Sound

Power

Features

Applications

Notes

Frequently Asked Questions

About Fabspeed

Reviews