M5 F90

Redstar Exhaust F90 M5 Secondary Cat Delete. We designed flow-optimized and perfectly fit BMW F90 downpipes, Lower Secondary Slip Style Downpipe only. Completely bolt-on, No check engine light issues.

We designed flow-optimized and perfectly fit BMW F90 downpipes, upper primary slip-on style downpipe only.

We designed flow-optimized and perfectly fit BMW F90 M5 downpipes, that utilize OEM split slip-on design. Includes Upper Primary and Secondary Downpipes. F90 M5 HJS 130mm Heat Shielded Downpipes Video F90 M5 CS Competition Downpipes Video F90 M5 Competition Downpipes Before & After video F90 M5 Competition Heat Shielded Downpipes Video