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Dinan's Free Flow Axle-Back exhaust system features 100% stainless steel construction measured to exact specifications to ensure proper fit via factory hangers and mounting points
fuel quality
black ceramic quad tips
All told this thorough methodology of design allows the Dinan carbon fiber cold air intake for the B46/B48 engine to elicit gains of 6 HP and 6 TRQ at 5000 RPM on a completely stock vehicle
reduced weight
Dinan High Flow Air Intake - 2014-2017 BMW 550i RADG Dinan's Free Flow Axle-Back exhaust'The Dinan carbon fiber intake looks as good as it performs, allowing more outside air to be pushed into the engine via twin ducts while also providing structural stiffness to the strut towers. Two new air inlets are added, each with its own high flow filter mounted into the mouth of the carbon fiber inlet. The stock air inlet is fully functional to provide four intakes into the engine for maximum airflow. The filtered air passes from the inlets into