Scorpion High Flow Sports Cat
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Scorpion High Flow Sports Cat - BMW M3 (F80) / M4 (F82/F83) - 70mm
This Scorpion section replaces the factory secondary catalysts on the BMW M3 (F80) and M4 (F82/F83) with high-flow sports catalysts on 70mm (2.75") T304 stainless pipework. It frees up flow after the turbos while keeping catalysts in the system. Scorpion lists it as fitting the factory (OE) exhaust or other Scorpion sections.
Note: Suits the M3 (F80) Sedan and M4 (F82 Coupe / F83 Convertible) from 2014 to 2020; Australian-delivered BMWs have no GPF. Scorpion notes the engine management light may come on and recommends a Stage 2 ECU remap. The factory system must be cut unless fitted with the Scorpion SBMS073 / SBMS073C system. Installation by a professional is recommended.
Features
- High-flow secondary sports catalyst section
- 70mm (2.75") T304 stainless pipework
- Weighs about 9.4kg, per Scorpion
- Fits the OE system or Scorpion sections
Need help confirming fitment? Contact our team at sales@chicaneaustralia.com.au.
Product
- Brand
- Scorpion
- Part number(s)
- SBMX073
Details
- Product type
- Secondary high-flow sports cat section
- Pipe diameter
- 70mm (2.75")
- Fits to
- OE / Scorpion
- Material
- T304 stainless steel
- Notes
- Engine light may come on; Stage 2 ECU remap recommended. OE system requires cutting unless fitting SBMS073 / SBMS073C
- Weight
- 9.4kg
Contents
Twin-pipe section
Two high-flow sports catalyst sections
Vehicle fitment
Universal fit: this part suits any car. Check the specifications above for sizes and fittings.
| Make | Model | Chassis | Years | Versions | Engine | Brakes | Position |
|---|
Can’t see your car? Ask us and we’ll check fitment for you.

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