Silicone Intake Pipe Hose for B58 G Chassis BMW 540i, 740i, 840i, X3, X4, X5, X6, X7The Burger Motorsports silicone intake pipe upgrade for the B58 BMW smooths the airflow from the intake to the factory turbo inlet by removing the bulky upper factory sound resonator and the lower accordion section of the air inlet pipe. Features and Benefits Maximize airflow by letting more air smoothly enter your turbo with no restriction Removes the bulky upper factory sound resonator Removes the lower factory accordion tube Works with the factory