Scorpion Secondary High Flow Sports Catalyst Section – BMW F80 M3 / F82 F83 M4 (Non-GPF)

The Scorpion secondary high flow sports catalyst section is a performance upgrade designed to replace the restrictive OEM secondary catalytic converters on F8x M cars. Featuring high-flow catalysts and larger bore pipework, this system improves exhaust flow, enhances sound and supports increased power while retaining more refinement than a full de-cat setup.

Fitment: BMW F8x M Models (Non-GPF)
SKU: SBMX073

Key Features

High-Flow Sports Catalyst Design

– Replaces restrictive secondary catalytic converters
– Uses high-flow sports cats to improve exhaust efficiency
– Better balance of performance and emissions vs de-cat

70mm Performance Pipework

– 70mm (2.75") mandrel-bent stainless steel design
– Improves exhaust gas flow and reduces back pressure
– Optimised for turbocharged S55 engines

Stainless Steel Construction

– T304 stainless steel for durability
– Corrosion-resistant and long-lasting
– Hand-finished construction

Direct Replacement Fitment

– Fits to OEM or Scorpion exhaust systems
– Designed as a bolt-on upgrade
– Supplied with fitting components

Benefits

– Increased exhaust flow and improved turbo efficiency
– Louder, deeper and more refined exhaust tone
– Improved performance potential when tuned
– Less aggressive than full de-cat setups

Fitment

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

Installation Notes

– Fits OEM or Scorpion systems
– OEM exhaust may require cutting unless paired with Scorpion cat-back
– Stage 2 ECU remap recommended
– May trigger engine management light
– Not guaranteed to pass emissions testing (motorsport/off-road use advised)