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Product details
Remove the original primary catalyst sections from the S55 M3/M4 exhaust with these competition downpipes. Their factory-style interfaces allow connection to the original exhaust or a matching replacement system. 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.F8X.PCBDP.
- Mandrel-bent straight-through stainless pipes with minimal welded sections.
- Compatible with OEM-style connections, including the matching Fabspeed valved system.
- Factory catalyst removal can trigger a check-engine light.
- These are downpipes rather than the separate Double-X or rear muffler assembly.
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.
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
| Years | Make | Model / chassis | Version / application | Fitment notes |
|---|---|---|---|---|
| 2014–2020 manufacturer family range | BMW | M3 F80 / M4 F82 / F83 | Primary catalyst-delete downpipes | Match installed turbo/exhaust connections. F83 is named for these pipes; it is excluded from the separate cat-back listing. |
