For BMW F20 F30 F31 N55 M135i M235i 335 Intake Turbo Charge Intercooler Pipe Kit. Please check if it fits your vehicle before purchasing it! Increase throttle response and decreases turbo lag. Retains factory style o-ring throttle body lock flange. Precision CNC machined throttle body flange ensures leak free connection to throttle body. Quick and easy connection and disconnection to throttle body. Ideal connection compared to the silicone hose and hose clamp connection found in all other aftermarket diverter valve upgrade pipes available in the marketplace. Precision CNC machined MAP sensor flange ensures leak free connection. Diverter Valve Charge Pipe features beaded ends and T-bolt clamps to prevent intercooler piping from coming off from boost. Optional Type III Hard Black Anodizing (for stealth and OEM look). Hard anodizing helps improve durability of intercooler piping. Resists bent or dented piping. Compatible with the factory electronic diverter valve. Includes all hardware for complete installation. If your item is defective or damaged. Please take considerate care of the goods and return it to us in its original condition which is required for a return eligibility. All products are subject to availability and may be withdrawn at any time. Our items are for aftermarket. Therefore, it doesn’t include instructions. Professional installation is highly recommended. Please review the descriptions carefully if the item is suitable for you before making the order. In the event the item should fail due to manufacturing defects during intended use, we will replace the part by free. All emails will be answered in less than 24 hours. We strive to resolve any issues you may have, our ultimate goal is to keep you happy as a customer.