Milltek Large Bore Downpipe Hi-Flow Sports Cat | Mercedes C63 & C63 S (W205) Saloon 4.0 Bi-Turbo V8

Description

OEM catalysts restrict exhaust gas flow and limit performance. The Milltek Large Bore Downpipe with Hi-Flow Sports Catalyst reduces restriction over OE units, enabling a free-flowing exhaust system that improves engine performance and response. This integrated downpipe and sports cat assembly is engineered for direct factory fitment. Fitment & Installation: • Direct replacement for OE primary and secondary catalysts • Gearbox removal required for installation • Compatible with OE cat-back systems and Milltek cat-back exhausts • Requires Stage 2 ECU remap for optimal performanceConstruction: T304L stainless steel, mandrel-bent large bore piping with hi-flow catalyst core engineered to maximize exhaust velocity while maintaining structural integrity. Hand-finished for OEM+ presentation. Milltek performance downpipes deliver measurable gains when paired with ECU optimization and full exhaust system upgrades. Designed and manufactured in the UK with 40+ years of performance exhaust heritage. Tested at the Nurburgring.

Fits 25 vehicles including:

• 2015 Mercedes-Benz C-Class— C63 & C63 S (W205) Saloon 4.0 Bi-Turbo V8 (Non-GPF Equipped Models Only) > 2015 and Later
• 2016 Mercedes-Benz C-Class— C63 & C63 S (W205) Saloon 4.0 Bi-Turbo V8 (Non-GPF Equipped Models Only) > 2015 and Later
• 2017 Mercedes-Benz C-Class— C63 & C63 S (W205) Saloon 4.0 Bi-Turbo V8 (Non-GPF Equipped Models Only) > 2015 and Later
• 2018 Mercedes-Benz C-Class— C63 & C63 S (W205) Saloon 4.0 Bi-Turbo V8 (Non-GPF Equipped Models Only) > 2015 and Later
• 2019 Mercedes-Benz C-Class— C63 & C63 S (W205) Saloon 4.0 Bi-Turbo V8 (Non-GPF Equipped Models Only) > 2015 and Later
• 2020 Mercedes-Benz C-Class— C63 & C63 S (W205) Saloon 4.0 Bi-Turbo V8 (Non-GPF Equipped Models Only) > 2015 and Later
• + 19 more vehicles