Fabspeed HJS Sport-Cat Downpipe for BMW 335i F30 / 435i F32

Choose the downpipe flange that matches the turbo wastegate fitted to your 335i or 435i. This HJS-catalyst assembly is offered in different mechanical- and electronic-wastegate connections, so the build-date selector needs to agree with the actual hardware. 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.F3XX.SCDP. The selected option determines the complete supplied configuration.
• 200-cell HJS catalyst core.
• Separate small-ID mechanical-wastegate and larger-ID electronic-wastegate flanges.
• Bolt-on installation without cutting or welding.
• Manufacturer-reported weight reduction is approximately 2 lb.
• Check the production-date label and installed turbo before selection.
• Covered by the Fabspeed Lifetime Warranty, subject to its terms and exclusions.

Use restrictions

Verify the exact catalyst certification and permitted installation for the vehicle. The selected flange and absence of a fault light do not establish public-road approval.

Manufacturer Videos

BMW 335i & 435i | Fabspeed Sport Cat Downpipe and Corsa Cat Back | Sound Check

What Are HJS Catalytic Converters? | Fabspeed Motorsport

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.

Need help matching this part? PMB Performance brings over 20 years of parts and fitment experience. Send your VIN and the relevant original or modified component details so we can help verify the application before you order.

Fitment & Compatibility