Fabspeed High-Flow Sport Catalytic Downpipes for McLaren 570S and 570GT

Description

The Fabspeed Sport Catalytic Converters for 570S / 570GT / 540C replace the restrictive factory catalysts with high-flow, race-inspired units — transforming the exhaust path into a freer-breathing layout that sharpens throttle response, boosts turbo efficiency, and delivers a richer, more exotic supercar exhaust note. Engineered to balance performance and drivability, these “sport cats” provide near-straight-pipe flow while retaining catalytic scrubbing — allowing for strong performance gains without sacrificing ECU harmony. They’re ideal for owners who want more sound, speed, and responsiveness from their twin-turbo McLaren.

Fitment Notes

• Compatible with all McLaren 570S, 570GT, and 540C vehicles.

• Designed as a direct replacement for stock catalytic converter assembly — mounts using factory exhaust plumbing and mounting points. 

Included

• Pair of high-flow catalytic converter units with HJS 200 cell German high-performance HD catalytic cores. 

• TIG-welded stainless-steel inlet and outlet pipes (investment-cast) designed for smooth gas flow and minimal turbulence.

• High-temperature heat blankets (rated to 1800 °F) covering the catalytic bodies — to preserve exhaust velocity and manage under-hood heat.

Product Specs

• Catalyst Core: High-flow 200-cell HJS HD catalytic converters — flows ~ 90–93% of a straight-pipe equivalent while retaining emissions-scrubbing capability. 

• Piping: Stainless-steel cast-inlet and outlet 4.5″ (oversized for optimal flow) to maximize exhaust velocity and minimize back-pressure.

• Thermal Management: Included ceramic-fiber heat wraps with stainless mesh liner and high-temp fasteners — helps keep exhaust gases hot for better flow and protects nearby components.

• Emissions / ECU Compatibility: Designed to retain oxygen-sensor bung placement for proper feedback; optimized to avoid catalyst-related error codes under normal operating conditions.

Product Features

• High-Flow Catalysts for Max Performance & Sound — HJS 200-cell cats flow almost like a straight pipe while still functioning as a catalytic converter — delivering a deep, aggressive exhaust character with less back-pressure.

• Improved Turbo Spool & Throttle Response — Reduced restriction after the turbochargers lets exhaust gases evacuate more freely, aiding faster turbo response and more immediate power delivery.

• Upgraded Build Quality — Investment-cast stainless inlet/outlet with HJS cores ensure durability, thermal stability, and longevity even under aggressive use.

• Thermal Protection & Efficiency — High-temp blankets keep exhaust heat contained, maintaining gas velocity and protecting surrounding components from heat soak.

• Plug-In OEM-Compatible Fitment — Designed to bolt directly into stock exhaust layout — no cutting or fabrication required — ideal for straightforward installation.

• Balanced Performance vs Emissions — Offers a strong performance boost and supercar sound while keeping catalytic filtration in place — a practical choice for owners who care about residual emissions functionality and ECU compatibility.

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