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RENNKRAFT® Modular Headers with HJS Catalytic Converters
US-patented RENNKRAFT modular headers for the Porsche 997.2 Carrera (2009-2012, including Cayman R and Boxster Spyder), built in-house from CNC mandrel-bent T304L stainless steel with F1-style Where header primary tubes join into one pipe, shaped to smooth exhaust pulses and improve scavenging.. A quick-release V-band connector lets the owner swap between German-made German manufacturer of the high-flow catalytic converters Fabspeed fits in its sport cat products. 200-cell catalytic converters for street use and Removes the catalytic converters entirely; legal only for closed-course track or off-road use, not street driving. pipes for closed-course track use. With the HJS cats fitted, gains run around 25hp and 27 Nm of torque while saving 0.9 kg, and the exhaust note turns sportier and more defined; the bypass pipes bring a louder, race character for track days.
Frequently asked
Does the RENNKRAFT® Modular Headers with HJS Catalytic Converters fit my Cayman?
This listing is specific to the Porsche Cayman (987.2). Exact fitment for your year, trim and options is confirmed on your free consult before anything is ordered.
What does the price include?
The delivered price includes the part from Fabspeed USA, freight to Australia, import costs and GST. Enter your postcode to refine delivery; the final figure is confirmed on consult.
How long until it arrives?
Every Fabspeed part is made in-house at Fabspeed USA with about a one-week production lead time, then allow another 3-4 days for delivery to Australia via UPS. That freight is already included in the price.
What's the difference between the Sport Cats and Cat Bypass options?
The Sport Cats option keeps HJS 200-cell catalytic converters in place for street use, while the Cat Bypass pipes remove them entirely; Fabspeed designates the cat bypass pipes for track use only.
Does the sound change much between the cats and bypass?
Yes. With the HJS cats you get a sportier, more aggressive note with more defined tones and off-throttle burbles; with the cat bypass pipes installed, Fabspeed describes an even more aggressive, race-bred sound.
How much power do these headers add?
Fabspeed's testing showed gains of 25 hp and 27 Nm of torque.
Do I need to retune the ECU with these headers?
No, Fabspeed states no ECU tune is required.
Which option should I choose?
The RENNKRAFT headers use a quick-release V-band clamp. Sport Cats keeps HJS catalytic converters fitted for street use with no check engine light. Cat Bypass Pipes removes them for closed-track/off-road use only. The combo option gives you both sections to swap between yourself.
Who installs it?
Rennen Motorsport in Adelaide, or an authorised dealer near you. Fitting it yourself may also be an option depending on the part, so raise it on your consult; professional installation is quoted separately.
Is it covered by warranty?
Fabspeed products carry the manufacturer's warranty, supported locally through Rennen Plus as the Australian principal. See our returns policy.
Can I just buy this outright, or do I need to talk to someone first?
Every enquiry, whether it's one part or a full build, starts with a free consult. We confirm the exact spec for your car before anything is quoted or ordered.
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