HPS Performance Air Intake Kits are designed with style and performance in mind. This HPS Performance Air Intake Kit replaces the factory intake and air filter housing with a 3.5" custom mandrel-bent aluminum tube and powder coated heavy duty heat shield designed to maximize the performance of the BMW B58 turbocharged straight-six engine. Included is a reusable high-flow cotton air filter to provide maximum airflow to increase your engine's output by up to 22 horsepower and 26 lb-ft. of torque for power you can feel through improved throttle response and acceleration. This kit includes HPS 100% stainless steel T-bolt clamps and 3-ply reinforced silicone couplers that are engineered to withstand the toughest driving conditions. HPS Performance Air Intake Kits are designed and tested using the latest technology to ensure the best performance and fitment.