This new Stage 2 Air Box Cover is a CNC machined out of billet black polyamide 6, and designed to work exclusively with the DNA stock replacement air filter.
Correctly used it will increase the airflow, torque and power of the engine.
Installation info are included with this new DNA Stage 2 Air Box Cover and fuel injection recalibration is necessary.
The filtering efficiency of the assembly with the DNA Stage1 Air Filter (R-Y7N14-01) is extremely high at 98-99% filtering efficiency (ISO 5011).
This DNA Stage 2 Air Box Cover is designed for Road and Race use.