Fabspeed HJS Sport-Cat Downpipe for BMW M235i F22

Replace the original M235i downpipe catalyst arrangement with a 200-cell HJS HD assembly. The formed clearance section is part of the application-specific pipe, and the turbo/downstream connections must match. Fabspeed Motorsport, based in Fort Washington, Pennsylvania, develops exhaust systems, air intakes and ECU tuning for sports cars including Porsche. Its development work uses dynamometer testing, road evaluation and racetrack testing.

Technical Details

• Manufacturer product reference: FS.BMW.M235.SCDP.
• 200-cell HJS HD catalyst core.
• Bolt-on replacement without cutting or welding.
• Fabspeed reports test gains of 21 whp / 36 lb-ft at 3,000 rpm and 26 whp / 22 lb-ft at 4,500 rpm.
• Measured gains depend on vehicle, hardware and test conditions.

Use restrictions

Check certification and permitted use for the actual vehicle and location. A manufacturer no-check-engine-light statement is not blanket road approval.

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Fitment & Compatibility