The SLN Performance Ceramic Coated Sports Cat Downpipes for the S58 engine provide major flow improvements while maintaining a refined exhaust tone with minimal rasp. Featuring Euro 5 200-cell high-flow catalysts and ceramic thermal coating, these downpipes deliver power gains, reduced heat and smoother sound.

Fitment: G87 M2, G80 M3, G82/G83 M4, X3M/X4M LCI

Key Features

Euro 5 200-Cell Sports Cats

– Reduced restriction
– Cleaner, smoother tone
– Minimal rasp vs decats

Ceramic Thermal Coating

– Keeps engine bay temps lower
– Protects nearby components
– Improves consistency under load

Performance Gains

– Faster spool
– Increased horsepower and torque
– Flow-optimised design

Premium Build

– 304 SS flanges
– 100% TIG welded
– OEM-style brackets
– LHD/RHD compatible

Benefits

Ideal for S58 owners wanting performance without excessive rasp. More power, lower heat, cleaner tone and excellent durability.

Fitment

– 2020–2024 G80 M3
– 2020–2024 G82/G83 M4
– 2023+ G87 M2
– 2022+ X3M/X4M LCI

Installation Notes

– ECU tune required
– Not MOT compliant
– Professional installation recommended

About SLN Performance

SLN Performance manufactures premium exhaust upgrades engineered for improved sound, flow and heat management on high-output S58 engines.