Fabspeed HJS Primary Sport Downpipe Pair for BMW M5 F10 (2011+)

Replace the F10 M5 primary catalyst assemblies with HJS 200-cell downpipes. The pair uses left/right-specific connections and is intended to mate with the factory rear exhaust or an aftermarket system accepting the original catalyst interfaces. 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.BMW.F10.PSCDP.
• Two identified left/right downpipes with the listed hardware.
• T304L stainless tubing, CNC-machined flanges and laser-cut brackets.
• 200-CPSI HJS sport catalysts.
• Confirm gasket requirements and original sensor connections before installation.
• Product-specific competition-use restriction applies despite the presence of catalyst cores.

Use restrictions

Fabspeed specifies closed-course competition and off-road use for this product or its catalyst/intake-changing components. A sport catalyst, a STREET option label or the absence of a fault light does not establish public-road emissions approval. Confirm the requirements for the intended installation before ordering.

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Fitment & Compatibility