Milltek Secondary Catalyst Bypass | BMW G8X M3 M4

Description

Non-resonated 102mm single mid pipe for BMW G8X M3 and M4 (S58 engine). Direct fitment to OE axle back or compatible with Milltek Axle Back systems. Engineered for closed-course and track use. T304L stainless steel, mandrel-bent construction with hand-finished welds. Designed to eliminate secondary catalytic restriction while maintaining OEM+ mounting points and hanger compatibility. Ships August 1, 2024. Fitment: • BMW M3 G80 (2021+) • BMW M4 G82/G83 (2021+) • Works with OE axle back (SSXBM1339) or Milltek Axle Back (SSXBM1340) Designed and manufactured in the UK with 40+ years of performance exhaust heritage. Tested at the Nurburgring.

Fits 14 vehicles including:

• 2021 BMW M3— G80 M3 & M3 Competition S58 3.0 Turbo > 2021 and Later
• 2022 BMW M3— G80 M3 & M3 Competition S58 3.0 Turbo > 2021 and Later
• 2023 BMW M3— G80 M3 & M3 Competition S58 3.0 Turbo > 2021 and Later
• 2024 BMW M3— G80 M3 & M3 Competition S58 3.0 Turbo > 2021 and Later
• 2025 BMW M3— G80 M3 & M3 Competition S58 3.0 Turbo > 2021 and Later
• 2026 BMW M3— G80 M3 & M3 Competition S58 3.0 Turbo > 2021 and Later
• + 8 more vehicles