Tour with Harley-Davidson Twin-Cooled power and great sound with the new Boom! Audio Stage I/II Fairing Lower Speaker Kit (P/N 76000660, $299.95*) from Harley-Davidson Genuine Motor Parts & Accessories. Designed to replace the fairing lower cooling system access doors in the original equipment fairing lowers of Twin-Cooled Touring models, these vibration-tested waterproof two-way speakers feature a four-inch bass/midrange driver and a grill-mounted one-inch tweeter, each performance-optimized to complement the sound characteristics of both Stage I and Stage II Boom! ™ Audio systems. These speakers are designed to enable higher listening volumes with reduced distortion at highway speeds with clear, crisp sound. For easy installation, the speakers are pre-mounted to a backing plate that snaps in place. The speakers can be easily removed to check coolant levels.