Arlen Ness Big Sckr STG1 17-18FL NA

One-piece aluminum backing plate features patented hidden breather technology

Each hidden breather is o-ringed at the heads and exits at the mouth of the injector/carb to provide efficient engine breathing, eliminating the need for any external hoses or hardware

Radius air inlet provides maximum performance by providing unobstructed airflow

Standard red filters are pre-oiled, washable and feature four-layers of surgical grade cotton for optimum filtration and maximum airflow

Synthetic filters feature a black synthetic material that is water resistant and never needs to be oiled; just wash and re-use

Stage I kit accepts OEM outer cover (unless noted) or custom Ness outer cover

All necessary hardware and instructions are included with each kit