SKU: 43866491278

Fabspeed 981 RENNKRAFT Modular Headers w/ HJS Catalytic Converters 15-20(FS.POR.981GT4.MH.CB)

Sale price$2013.27 Regular price$2236.97
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Ships within 48 hours · Estimated delivery Sep 20 - Sep 25

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Description

Fabspeed 981 RENNKRAFT Modular Headers w/ HJS Catalytic Converters 15-20(FS.POR.981GT4.MH.CB)These modular headers are the perfect solution for any Cayman or Boxster. Our patented RENNKRAFT 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:

These modular headers are the perfect solution for any Cayman or Boxster. Our patented RENNKRAFT™ 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:

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 off throttle 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.

FEATURES:

  • Fits all Porsche 981 Cayman GT4 / Boxster Spyder vehicles (2015-2016)
  • Constructed from CNC mandrel-bent T304L stainless steel
  • Impressive power and performance gains
  • 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
  • With the RENNKRAFT™ system, you can quickly install our QUICKTRACK™ cat bypass pipes for Racing and all out Race track-only competition events
  • The RENNKRAFT™ system has been awarded a US Patent and is the only system of its kind in the world
  • 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
  • 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
  • Optimized for maximum performance with NO catalyst generated check engine light, guaranteed, when Sport Cats are installed
  • No ECU tune required
  • Will fit with any brand of aftermarket exhaust system designed to work with the factory headers
  • 25+ years of air-cooled and water-cooled Porsche experience went into our design for these hand-crafted headers
  • Simple DIY (Do-It-Yourself) bolt-on installation, no cutting or welding required
  • All Fabspeed performance products are backed by the Fabspeed Lifetime Warranty
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 43866491278

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4.5 ★★★★★
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K
Verified Purchase
Kyle & Noelle
Phoenix, US
★★★★★ 5
Prefer over socks!
Size: 12-18 Months Toddler, Color: Pink Sherpa
These are a great option for babies and toddlers that won’t keep their socks on! We wear these all the time- my little girl even takes naps in them sometimes. They are soft and washable and I love that they have the grippies on the bottom now that she’s walking. She doesn’t slip in them even when walking like she does in some socks.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 9, 2026
D
Verified Purchase
Dawn
Lexington, US
★★★★★ 5
Love roebeez brand
Got two pairs of these for baby showers. Love them so cute beautiful color love roebeez brand
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Reviewed in the United States on October 5, 2025
A
Verified Purchase
a
Battle Creek, US
★★★★★ 3
Not anti slip. Baby can't pull off.
Size: 12-18 Months Infant, Color: Light Pink Sherpa
Made and fits well, baby can't really pull them off. The bottom of the bootie is slick not anti slip so baby was sliding everywhere, while trying to walk on hardwood floor.
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Reviewed in the United States on May 5, 2026
C
Verified Purchase
Chandler Garland
Whiting, US
★★★★★ 5
Would recommend
Size: 12-18 Months Toddler, Color: Pink Sherpa
These shoes are easy to put on and fit great. My daughter can’t easily take them off. I love the material and I’m grateful that I know her feet are warm during the cold month. They seem like they’d be easy to wash.
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Reviewed in the United States on November 30, 2025
M
Verified Purchase
M.T.
Alexandria, US
★★★★★ 5
Quality booties that don’t fall off
Size: 0-3 Months Infant, Color: Ivory Sherpa, Size: 0-3 Months Infant, Color: Ivory Sherpa
Love these booties - super cute, quality made, and they don’t fall off even when we’re passing the baby around. We put these on without socks; the booties are not lined with fleece but has a firm sole. I got the 0-3 months size for my 3 month old and there’s still a little bit of room to grow. Easy to put on baby’s wiggling feet and there are two snap buttons to select for fit. There’s really no grip on these so not sure how they hold up for walking. The fleece is plush and seems to keep baby’s feet warm.
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Reviewed in the United States on November 5, 2024

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