Description
The Fabspeed Sport Headers for the 981 Cayman GT4 / Boxster Spyder offer a substantial upgrade over the restrictive factory exhaust manifold. Designed around high‑flow sport catalytic converters, these headers give the 3.8‑L flat‑six sharper throttle response, stronger low‑end torque, and a more emotive exhaust tone — all while remaining emissions‑compatible and suitable for street driving. The result is a livelier, more fun-to-drive GT4 without sacrificing daily usability.
Fitment Notes
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Fits Porsche 981 Cayman GT4 and Boxster Spyder (2015–2016).
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Direct bolt-on replacement for factory headers; no cutting or welding required.
Included
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Full set of mandrel-bent equal-length stainless steel headers (left and right).
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Integrated high-flow HJS 200 cell sport catalytic converter cores.
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All gaskets and mounting hardware required for direct OEM fitment.
Product Specs
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Material: T304 stainless steel, CNC-mandrel-bent for optimal flow and durability.
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Header design: Equal-length primaries for optimized exhaust pulse timing.
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Estimated performance gains: Approximately +26 wheel horsepower and +39 ft-lb torque at ~3600 RPM.
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Weight: Reduced compared to stock headers for improved responsiveness.
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Sound: More aggressive exhaust tone with deeper mid-range notes and a sportier overall exhaust character.
Product Features
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Improved Mid-Range Performance — Enhances torque and throttle response for daily driving and spirited performance.
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Street-Legal & Emissions-Friendly — High-flow catalytic converters allow increased flow without triggering check-engine lights.
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Enhanced Exhaust Sound — Produces a deeper, more aggressive exhaust tone without excessive drone.
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Bolt-On Installation — Designed for direct OEM fitment; no fabrication required.
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Durable Construction — Mandrel-bent stainless steel provides strength, corrosion resistance, and longevity.
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Mod-Friendly Upgrade — Ideal first step for a performance build; pairs seamlessly with aftermarket exhaust systems and tuning upgrades.
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