BT MOTO 2019+ BMW S1000XR/R/RR And M1000RR/R (K66/K67) Intake Flapper Kit

WHAT DOES THIS KIT DO?

• Removes factory airbox flappers to allow fresh air to enter the airbox at any speed, RPM or gear.
• A true ambient reading means more power but also means consistent power.
• Even distribution of air to all cylinders without any cylinder bias.
• More air to the engine with plastic flappers removed.
• No downside and dyno proven gains across the powerband.