550i

The RedStar B58N/B58X Downpipe is engineered for the B58B30M2 engine, delivering a substantial performance boost. By removing the restrictive stock catalyst|OPF, this high-performance downpipe enhances exhaust flow, resulting in increased power and a more aggressive sound. Optimized for the OE design, it provides a significant improvement to your...

REDSTAR EXHAUST BMW M550i 650i 750i 850i xDrive downpipes have a smooth transition from 3.5in OD section to OEM exhaust. Provides a huge increase in exhaust flow and will allow for a significant power gain.*Please list in the comments VIN, year and model when ordering*