[Fabspeed John]

It's a pity the Fabspeed Porsche 718 GT4 / GTS / Spyder Valvetronic X-Pipe Exhaust System isn't available for the 718 Cayman. Why isn't it?

It absolutely is available, we just have them separated on our Website!
Check out all of our offerings here: Porsche 718 Boxster / Cayman 2017-2018 Performance Parts & Exhausts

 

[Fabspeed John]

You are correct. Unfortunately we cannot create a Valvetronic X-Pipe for the Cayman. The stock setup makes it impossible.
However, Our Sport CATs and Supercup System will give you the same aggressive tone as the GT4 system while also giving you significant power gains.

Check out this video:

Do any of those interest you?

 

[Fabspeed John]

These modular headers are the perfect solution for any street driven 4.0 liter Cayman or Boxster. Our modular design features a quick release V-band connector that allows the owner to easily swap between our German made HJS 200 cell cats and a cat bypass “straight pipes” for track use. Rennkraft, translated from German is “race power”. These unique headers offer true street and racetrack functionality in an innovative precision engineered package.

SOUND:

Many have complained about the lack of sound with the new 718 4.0 Liter cars, these high flowing headers completely solve that issue. Equipped with our 200 cell cats, you will get a louder exhaust note with a much more raw sound. Higher frequency tones are more defined, and deceleration burbles are more robust and transparent. With the cat bypass pipes installed, you’re in store for a sound much more akin to a 911 CUP car than a Porsche street car. The volume isn’t overbearing, but the sound is very aggressive and race bred. It totally changes the character of the car. With the stock muffler in place, there is no drone what-so-ever, even with our Over Axle GPF Delete Pipes also installed.

POWER:

After extensive dyno development we found that mid length headers made the most power across the entire power band. With no tune, compared to a stock car we gained 31 whp and 19 ft/lbs of TQ at 7400 RPM with Sport Cats and 33 whp and 24 ft/lbs of TQ at 7200 RPM with Cat Bypass Pipes installed. That’s a gain of 33 HP and 36 HP, respectively, at the crank! Peak horsepower also increased from our baseline of 383 whp to 405 whp with our HJS Sport Cats and 409 whp with Cat Bypass Pipes. See our dyno graph above for more details.

FEATURES:

• Fits all Porsche 4.0L Cayman/Boxster GT4/GTS/Spyder vehicles 2020+
• 
  Impressive dyno proven power gains of 31 whp and 19 ft/lbs of TQ with the Sport Cats and 33 whp and 24 ft/lbs of TQ with Cat Bypass installed
• Save 2 lbs / 0.9 KGs with Sport Cats and 7 lbs / 3.2 KGs with Cat Bypass compared to the factory headers
• Modular design that uses a V-band clamp so one can quickly swap between cats and cat bypass
• Switching to cat-bypass for track events prevents catalytic converter degradation during all out competition racing abuse
• F1 style high velocity merge collectors
• Designed from 3D scans of the OEM headers so we can achieve perfect bolt-on fitment
• We use German-made HJS HD tri-metallic 200-cell EURO 6 homologated catalytic converters for the best performance and reliability
• Fabspeed is the exclusive North American & South American importer and distributor for HJS Emissions Technology with HJS warranty
• We use the largest catalytic converters that will fit in the factory location for maximum flow
• Flows 93% of a 2.5 in straight pipe
• Will NOT cause a CEL (Check engine light), NO P420 or P430 codes, when Sport Cats are installed
• No ECU tune required
• NOT EPA or CARB Certified and not be used on street driven vehicles
• More sports car sound
• Will fit with any brand of aftermarket exhaust system designed to work with the factory headers
• Built 100% in house at Fabspeed Motorsport USA in Fort Washington, PA
• These are the very finest headers for the 718 4.0 liter cars and where developed in collaboration with HJS Emissions Technology
• 25+ years of air-cooled and water-cooled Porsche experience went into our design for these hand-crafted headers
• Constructed from CNC mandrel-bent T304L stainless steel
• Simple DIY (Do-It-Yourself) bolt-on installation, no cutting or welding required
• All Fabspeed performance products are backed by the Fabspeed Lifetime Warranty

 

[Fabspeed John]

Ditch the factory gas particulate filters to increase power, save weight and add a throatier more aggressive tone. Our design process started with 3D scanning the entire exhaust system using our CREAFORM 700 Handscan so that we could make a complete Solidworks 3D model of the exhaust. We then designed the exhaust and fixtures using that model so that the exhaust fit perfectly to OEM standards. After multiple revisions for sound and dyno testing we settled on using a one piece mandrel bent over axle pipe that goes straight into the free flowing part of the OEM PSE exhaust and a secondary pipe TIG welded to the main section to make a Y configuration to utilize the quiet side of the PSE exhaust when the valves are closed.

SOUND:

These Over Axle GPF Delete Pipes will bring out a stronger throatier tone from your 4.0l flat six. This is a mild but noticeable increase in overall volume over stock.

FEATURES:

• Fits all 718 Cayman/Boxster GT4 / GTS / Spyder Cars 2020+
• Over Axle pipes remove and delete the Gasoline Particulate Filters, GPF, found on all 4.0L cars worldwide
• Save 9 lbs / 3.5 KG versus the stock GPF over axle pipes
• Constructed from high-quality 14-16ga CNC mandrel-bent T304L stainless steel for maximum durability
• More sports car sound and more exhaust flow
• Designed, engineered and built 100% in house at Fabspeed using state of the art equipment and technology
• Simple DIY bolt-on installation, no cutting or welding required
• All Fabspeed performance products are backed by the Fabspeed Lifetime Warranty

 

[Fabspeed John]

We did a back-to-back dyno test of our modular RENNKRAFT headers for the 718 4.0L cars. For those that don't know, these headers allow you to easily swap between running catalytic converters and running no cats for track use. As you can see in the video, you can easily swap them under the car. This was with an otherwise totally stock exhaust system, no tune, and no other mods. We saw excellent gains across the board. Max power gains with our HJS high flow Sport Cats were +30.8 WHP and +18.8 ft/lbs of TQ at 7400 RPM. With Cat-Bypass we saw +33.1 WHP and 24.2 ft/lbs of TQ at 7200 RPM. There's also large gains down low, particularly in the dip from 2000-3000 RPM. Sports cats were up 14.7 ft/lbs of TQ, and cat bypass was up 24.1 ft/lbs of TQ.

 

[Fabspeed John]

These modular headers are the perfect solution for any street driven 4.0 liter Cayman or Boxster. Our modular design features a quick release V-band connector that allows the owner to easily swap between our German made HJS 200 cell cats and a cat bypass “straight pipes” for track use. Rennkraft, translated from German is “race power”. These unique headers offer true street and racetrack functionality in an innovative precision engineered package.