3% increase in Horsepower. The key to making power with any engine is abundant air and fuel flow into the combustion chamber. Swapping your stock air filter for this Stage 1 High Performance Air Cleaner is a great way to create more power and improve acceleration. Not only does the Stage 1 Performance air cleaner non-woven media improve power through better flow, it also provides high efficiency cleaning to protect your engine from damaging dirt and debris. The muscle car-inspired design increases the volumetric efficiency and creates a ram air effect, which increases engine power as you increase the speed of the motorcycle. Variable length fins inside the intake tract are tuned to optimize and smooth the airflow inside the housing. The steel cover provides the same legroom as stock. Adding the final bit of style is the iconic Indian® script logo embossed across the face of the housing cover.