Ramair Performance Pleated Induction Kit for BMW F Series 1.6 N13Upgrade your BMWs N13 engine with the Ramair Performance Pleated Induction Kit for F Series models. Designed specifically for the 1. 6L turbocharged petrol engine, this kit replaces the restrictive factory airbox with a high flow pleated filter, precision CNC MAF housing, and robust powder coated pipework. The result is improved throttle response, sharper turbo spool, and a more aggressive induction sound, all while maintaining everyday drivability