





Catless Exhaust Manifold for Porsche Boxster Cayman 718 Spyder GTS GT4
Unlock maximum naturally‑aspirated performance from your Porsche 718 4.0L platform with the STRATEC Catless Performance Exhaust Manifold Headers, engineered to eliminate factory catalytic restrictions and dramatically improve exhaust flow.
Designed for the 4.0L flat‑six engines found in the 718 Spyder, GTS 4.0, and GT4, these race headers reduce backpressure, enhance exhaust scavenging, and deliver sharper throttle response with stronger mid‑range and top‑end power. Expect quicker revving, louder volume, and a raw motorsport flat‑six sound.
Precision fabricated from high‑grade stainless steel with mandrel‑bent runners and TIG‑welded construction, this STRATEC system installs directly to factory mounting points for clean bolt‑on fitment.
Performance Benefits
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Catless race header design for maximum exhaust flow
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Reduced backpressure for faster throttle response
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Increased mid‑range and top‑end horsepower
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Aggressive flat‑six exhaust character
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Mandrel bent stainless steel runners
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Precision TIG welded construction
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Direct bolt‑on installation
Fitment
Porsche 718 Cayman GT4 – 4.0L NA Flat‑Six
Porsche 718 Boxster Spyder – 4.0L NA Flat‑Six
Porsche 718 Cayman / Boxster GTS 4.0 – 4.0L NA Flat‑Six
Approx. Model Years 2020–2024
Pairs well with
Ships within 1-2 business days.
Free shipping & returns

Catless Exhaust Manifold for Porsche Boxster Cayman 718 Spyder GTS GT4
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FAQs
Please read our FAQs page to find out more.
Are OEM products more expensive than aftermarket alternatives?
OEM products might have a higher upfront cost compared to aftermarket parts, but their superior quality and durability often make them a more cost-effective choice over time. Investing in OEM ensures you’re getting parts specifically designed for your vehicle, which can lead to better performance and longevity.
Can I purchase OEM parts online or do I need to visit a dealership?
You don’t need to visit a dealership to get OEM parts. You can conveniently purchase genuine OEM components from authorized distributors and reputable online retailers like Turbo Tech Performance. Our online store provides a wide selection of high-quality parts delivered straight to your door.
Are parts from brands like Mopar, ACDelco, and Motorcraft interchangeable between different vehicle brands?
No, parts from Mopar, ACDelco, and Motorcraft are typically designed for specific vehicle brands. It’s crucial to ensure compatibility with your vehicle’s make and model by checking part numbers and consulting with a knowledgeable expert.
Can I install OEM parts myself, or is it better to have a professional handle it?
While some OEM parts can be installed by DIY enthusiasts, the complexity of installation can vary. For the best results and to ensure proper fitment and performance, we recommend having a trained mechanic install the parts, especially if you’re unfamiliar with automotive repairs.
Do OEM parts come with a warranty?
Yes, many OEM auto parts come with a manufacturer’s warranty that covers defects or issues. Be sure to check the warranty details for each part at the time of purchase, and keep your receipt for any potential warranty claims.


