This new DNA airbox cover and air filter kit for the BMW R 1250 / GS / Adventure Stage 2 replaces the original BMW air filter and the “restrictive” plastic frame.

Designed to “sit” lower than the original filter, it opens up the 2 airflow passages that direct cold air from the front of the motorcycle to the filter.
By gently directing the incoming air toward the lower airbox, we eliminate restrictions and turbulence while improving torque and power.

With an active filtering surface of 132,300 mm2, this air filter has an 80% larger filtering surface and 38.5% greater airflow compared with the standard replacement air filter.

Filtration efficiency: 98–99%

Product information:

DNA S2 Adventure shipping kit airflow: 181.40 CFM (cubic feet per minute) @ 1.5 "H2O corrected @ 25 degrees Celsius.

BMW air filter airflow: 131.00 CFM (cubic feet per minute) @ 1.5 "H2O corrected @ 25 degrees Celsius.

The increased filtering surface and airflow will considerably extend the filter service intervals, allowing the user to travel longer before cleaning the filter.

Regardless of the revolutionary new design, filtration efficiency2 remains very high at 98–99%, with 4 layers of DNA cotton.