Scorpion Secondary De-Cat Section – BMW F80 M3 / F82 F83 M4 (Non-GPF)

The Scorpion secondary de-cat section is a performance upgrade designed to replace the restrictive secondary catalytic converters on F8x M cars. By removing these secondary cats, the system significantly improves exhaust flow, enhances sound and supports increased performance for both stock and tuned S55 engines.

Fitment: BMW F8x M Models (Non-GPF)
SKU: SBMC073

Key Features

Secondary De-Cat Design

– Removes factory secondary catalytic converters
– Improves exhaust gas flow and reduces restriction
– Designed for performance-focused setups

70mm Performance Pipework

– 70mm (2.75") mandrel-bent stainless steel construction
– Smooth internal flow for improved efficiency
– Direct fit to OEM or Scorpion systems

Lightweight Upgrade

– Approx. 1kg weight saving vs OEM
– Reduces overall exhaust system mass
– Improves performance characteristics

Premium Build Quality

– T304 stainless steel construction
– Hand-finished for durability and corrosion resistance
– Designed for long-term performance use

Benefits

– Louder, more aggressive exhaust tone
– Increased pops, bangs and turbo sound
– Improved exhaust flow for tuned vehicles
– Supports Stage 2 and high-performance builds

Fitment

– BMW M3 F80 (2014–2018)
– BMW M4 F82 / F83 (2014–2018)
– S55 engines (Non-GPF models only)

Installation Notes

– Fits to OEM or Scorpion exhaust systems
– Some setups may require cutting of the original exhaust unless paired with Scorpion systems
– ECU remap recommended (may trigger EML light)
– For motorsport/off-road use only – not road legal in many regions