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the mono-tube gas pressure technology developed by Bilstein® has established itself as a standard in automotive construction
such as the APR Carbon Fiber and PEX open systems
CNC-machined billet-aluminum PCV bung
FOR OFF ROAD USE ONLY
Measured Flow: 435 CFM @ 7" H2O
Active Autowerke Valved Rear Exhaust - M340i / M440i w black tips (11-089B) 1691 the mono-tube gas pressure technologyThe Active Autowerke Valved Rear Exhaust for the BMW M340i and M440i enhances the factory system by delivering a deeper, more aggressive sound while maintaining the stock valve control for optimal flow and resonance. Designed specifically for G series M340i and M440i models, this axle back exhaust replaces the rear section, requiring cutting of the stock midpipes. It retains the factory actuator for valve operation and features quad black exhaust tips
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