Fabspeed HJS Sport Catalysts for McLaren 720S (2018+)

Replace the original 720S catalyst arrangement with two large HJS HD 200-cell assemblies. Included thermal blankets form part of the matched heat-management installation. Based in Fort Washington, Pennsylvania, Fabspeed Motorsport designs exhaust, intake and ECU-tuning products for Porsche and other sports cars. Development includes evaluation on a dynamometer, on the road and at the racetrack.

Technical Details

• Manufacturer product reference: FS.MCL.720S.SC.
• German HJS HD 200-cell catalyst cores.
• Includes listed thermal blankets.
• Stainless assemblies with enlarged inlet/outlet routing.
• Replaces the original four-catalyst arrangement with two sport catalysts.
• Confirm sensor connections, shielding and actual pipe dimensions before ordering.
• No guaranteed output, flame behavior or catalyst-fault suppression is promised.
• Covered by the Fabspeed Lifetime Warranty, subject to its terms and exclusions.

Use restrictions

Verify permitted use and exact vehicle/market emissions certification. Catalyst-core descriptions do not establish blanket public-road approval.

Manufacturer Videos

McLaren 720S | Stock Cats vs Fabspeed Sport Cats | Revs and Driving Sound Comparison

Demonstration vehicles may have additional modifications. The selected product configuration determines what is supplied; a video does not establish fitment or guarantee a particular sound or output.

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Fitment & Compatibility