RedStar Exhaust BMW G80 M3 / G82 M4 Performance Downpipes are engineered to dramatically increase exhaust flow, reducing restriction and unlocking significant power gains. Designed to maximize turbo efficiency, these downpipes deliver sharper throttle response, faster spool-up, and a more aggressive exhaust character—making them a must-have...

The RedStar Exhaust BMW M8 Secondary Downpipes are engineered to improve exhaust flow, sound, and performance while maintaining factory drivability. Designed as a lower secondary slip-on style downpipe, this upgrade replaces the restrictive factory secondary catalytic converters with a fully bolt-on solution. Flow-optimized for maximum efficiency and...

We designed flow-optimized and perfectly fit Downpipes for the new BMW M8, upper primary slip style downpipe only. 

The RedStar Exhaust BMW X5M F95 / X6M F96 Secondary Downpipes are engineered to improve exhaust flow and sound while maintaining factory drivability. Designed as a lower secondary slip-style downpipe, this upgrade replaces the restrictive factory secondary catalytic converters with a fully bolt-on solution. Flow-optimized for performance and precision-fit...

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

The RedStar Exhaust BMW F90 M5 Secondary Downpipes are engineered to improve exhaust flow and performance while maintaining factory drivability. Designed as a lower secondary slip-style downpipe, this upgrade replaces the restrictive factory secondary catalytic converters with a fully bolt-on solution. Developed with a flow-optimized design and precision...

REDSTAR EXHAUST primary downpipes for the BMW F90 M5 are engineered for optimal exhaust flow and precise fitment. These downpipes reduce backpressure to deliver increased power, quicker turbo response, and a more aggressive exhaust note. Designed as a direct bolt-on upgrade, they provide a simple yet effective way to unlock more performance without...

REDSTAR EXHAUST Complete Downpipes System for the BMW M8 is engineered for maximum exhaust flow and precise OEM-style fitment. Utilizing the factory split slip-on design, this complete kit includes both upper primary and secondary downpipes for a seamless, bolt-on installation. By reducing exhaust restriction, the system delivers significant power gains,...

REDSTAR EXHAUST Complete Downpipes System for the BMW F95 X5M and F96 X6M is engineered for maximum exhaust flow and a precise OEM-style fit. Utilizing the factory split slip-on design, this complete kit includes both upper primary and secondary downpipes for seamless installation. By reducing exhaust restriction, it delivers significant power gains,...

edStar Exhaust BMW X3M / X4M Performance Downpipes are engineered to dramatically increase exhaust flow, reducing restriction and unlocking significant power gains from the S58 engine. Designed to improve turbo efficiency, these downpipes deliver faster spool-up, sharper throttle response, and a more aggressive, motorsport-inspired exhaust note—while...

REDSTAR EXHAUST downpipes are the ultimate performance upgrade for the BMW E70 X5M and X6M equipped with the S63 4.4L V8 M TwinPower Turbo engine. Engineered to improve exhaust flow, these downpipes deliver noticeable gains in power, faster turbo spool, sharper throttle response, and a deeper, more aggressive exhaust note. Precision-built for proper...

REDSTAR EXHAUST Downpipes for the BMW X5M F85 and X6M F86 are engineered to maximize exhaust flow from the 4.4L twin-turbo V8. By reducing restriction, they deliver significant power gains, faster turbo response, and a deeper, more aggressive exhaust note. Precision-built for a direct OEM-style fit with long-lasting durability. F86 X6M Catless Downpipe...