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F3x 4-Series
Manufactured using the pre-preg process the carbon material is placed into a mold and sealed in a vacuum (autoclave) for optimal curing
the system delivers two personalities: quiet and refined when valves stay closed in Comfort mode
Professional installation recommended but not required
Dinan 18-23 BMW M550i xDrive (G30) High Flow Middle Exhaust - 3in - Stainless Steel X6M F3x 4-SeriesThis full mid section kit removes the hydro formed factory center section, including the resonator, and replaces it with larger 3" T304 stainless steel tubing for freer flowing capabilities. In place of the factory resonator, Dinan incorporates a beautifully crafted X pipe made from mandrel bent tubing for minimum restriction, unlike stamped X pipes which are commonplace in the market. This sophisticated 'X' is not only the focal point of the system