Fabspeed Sport Catalytic Converters for McLaren MP4-12C (2011–2014)

These Fabspeed downpipe assemblies replace the MP4-12C's four factory catalytic converters with two HJS HD 200-cell sport catalysts. Cast inlet and outlet sections and included insulation address flow and heat around the turbocharged exhaust. Fabspeed Motorsport, based in Fort Washington, Pennsylvania, develops exhaust systems, air intakes and ECU tuning for Porsche and other sports cars through dynamometer, road and racetrack evaluation.

Technical Details

• Fabspeed product reference: FS.MCL.12C.SC.
• HJS HD 200-cell catalytic cores in T304L stainless assemblies.
• Investment-cast inlet and outlet sections.
• Heat blankets use stainless mesh, Kevlar and ceramic insulation.
• Fabspeed reports gains of 28 whp and 29 lb-ft and a 5 lb weight reduction on its development application.
• Designed as bolt-on replacements without cutting or welding.
• Covered by the Fabspeed Lifetime Warranty, subject to the manufacturer's terms.

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Fitment & Compatibility

Fits McLaren MP4-12C models from 2011–2014. Confirm the installed turbo/downpipe interfaces and exhaust configuration. Sport catalysts are an aftermarket catalyst conversion; do not assume road-use approval or universal compatibility with modified tuning.

PMB Performance has over 20 years of experience. Send us your vehicle details and a list of existing modifications if you need help checking this combination before ordering.