K&N Replacement Air Filter (33-2273) Mini > Third generation (F54/F55/F56/F57) > F56/F55 Hatchback 2014- > Cooper SD 2.0 Turbo Diesel (B47) this Purple 80A Durometer insert

this Purple 80A Durometer insert simply fits into the voiding within the mount and is secured in place with an included steel plate

Testing during the development of this bush has indicated stiffness gains of 128% compared with the original rubber bush

If you are not familiar in engine tuning and the operation of boost controllers DO NOT attempt the to fit this product for control of your turbos boost pressure

Not only that the internal spring can be changed for either a stronger or weaker version depending on how much boost pressure you are running

K&N Replacement Air Filter (33-2273) Mini > Third generation (F54/F55/F56/F57) > F56/F55 Hatchback 2014- > Cooper SD 2.0 Turbo Diesel (B47) this Purple 80A Durometer insertK&N washable, reusable High Flow Air Filters feature a state of the art design of layered, oiled cotton media engineered to improve airflow and capture contaminants, and are designed to provide an increase in horsepower. Each performance air filter is reusable, engineered to last for the entire lifespan of your vehicle, and backed by K&N's No Hassle Lifetime Limited Warranty. K&N drop in replacement filters are designed to install easily into your