The K&N air filter in the YAMAHA-R15V3 will provide a slightly louder sound when the throttle is opened and the engine is revved. The sound will be deeper and more aggressive, with a distinct growl when the throttle is opened quickly. The K&N air filter will also help to improve the overall performance of the engine as well, so it's a great choice for anyone looking to get the most out of their R15 V3.
