Changing the stock air intake with a performance air intake system is a relatively low cost way of improving the performance of a motorcycle. An improved motorcycle air intake system provides more oxygen to the engine. The result is more horsepower, improved fuel efficiency and fuel economy, and improved throttle response when accelerating from a standstill. Leatherup.com offers aftermarket motorcycle parts and motorcycle air intake upgrades such as performance motorcycle air intake kits, motorcycle air filters, air cleaners, motorcycle air filter covers, velocity stacks, intake manifolds, motorcycle crankcase breathers, crankcase breather kits, and more. | 
