SKU: 24954994397

Fabspeed RENNKRAFT Modular Headers w/ HJS Catalytic Converters 09-12 (FS.POR.9872.MH.SCCB)

Sale price$2448.87 Regular price$2720.97
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Ships within 48 hours · Estimated delivery Jul 17 - Jul 22

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Description

Fabspeed RENNKRAFT Modular Headers w/ HJS Catalytic Converters 09-12 (FS.POR.9872.MH.SCCB)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 987.2 Boxster / Cayman vehicles worldwide 2009-2012. Including Cayman R and Boxster Spyder.
  • 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: 24954994397

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4.7 ★★★★★
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Verified Purchase
Monique Martin
Grantham, US
★★★★★ 4
Works well
Color: Gray
Makes my heels super soft in addition to applying lotion
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 1, 2026
A
Verified Purchase
Angie P.
Boise, US
★★★★★ 5
Works well and fast
Color: Gray
I have very dry and cracked heals and this has helped a lot in just two nights . They are very soothing and comfortable to wear
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 9, 2026
N
Verified Purchase
Nurse Jesica
Waukegan, US
★★★★★ 5
My Heels Were in Bad Shape. Like… Really Bad
Color: Gray
These moisturizing heel socks with the gel cushions were honestly a small miracle for me. After recovering from cancer treatments, my skin became extremely dry everywhere, but my heels were the worst. They cracked so deeply they looked like fissures and were even bleeding. I tried lotions and bandages repeatedly with very little progress. A friend suggested I treat my heel like it might have a fungal component, so I applied Lotrimin cream, put these heel socks on, and hoped for the best. Within three days, my heels were fully healed. I completed a 7-day routine, and my feet have never been softer. The silicone gel cushion is comfortable, soothing, and stays in place. I loved it so much that I still treat myself about once a week, even though I really don’t need to anymore. They are also washable. I hand-washed mine in the sink and let them air dry, and they came out looking brand new. If your heels are cracked, painful, or need serious care, I highly recommend these.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 9, 2026
B
Verified Purchase
Becky
Birmingham, US
★★★★★ 5
Work well on hubby's heals
Color: Gray
Dr recommended these for hubby's dry cracked heals
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Reviewed in the United States on May 9, 2026
M
Verified Purchase
Misha
Lexington, US
★★★★★ 3
Ehh. Not for me.
Color: Gray
Foot slides when walking in them. The fit was tighter than lead to believe. It did hold the moisture in but the silicone patch is small
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Reviewed in the United States on February 23, 2026

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