The Milltek Non-Resonated Secondary Catalyst Bypass is engineered for the BMW G87 M2, replacing the factory secondary catalyst with a 102mm mandrel-bent T304L stainless steel mid-pipe. This system flows directly to your OE axle-back or pairs with the Milltek Axle Back (SSXBM1330) for a complete exhaust solution.

Hand-finished T304L stainless construction with 4.00" primary and 102mm secondary piping maximizes exhaust scavenging without resonance chambers. Cutting is required to pair with OE Axle Back. The non-resonated design is optimized for closed-course and track applications where aggressive mid-range tone character is desired.

Fitment

• BMW G87 M2 (2024+)
• Secondary catalyst replacement only—flows to OE axle-back or Milltek Axle Back (SSXBM1330)
• Must cut Factory system to pair with OE Axle Back

Specifications

• Material: T304L stainless steel, hand-finished
• Primary pipe: 4.00" mandrel-bent
• Secondary pipe: 102mm
• Design: Non-resonated for track-focused tone
• Fitment: OEM hangers and mounting

Milltek's 40+ year heritage in performance exhaust engineering means every system is dyno-tested and engineered for measurable flow gains. This secondary catalyst bypass is designed to complement the G87 M2's inline-six turbo character without compromise on fitment quality.