The K&N Heavy Breather is an aftermarket air intake system designed for the 2019 Harley Davidson XL1200CX Roadster motorcycle equipped with the 74CI engine. The Heavy Breather is designed to replace the stock air intake system and provide a number of performance enhancements, including increased horsepower and torque, improved throttle response, and a deeper, more aggressive engine sound.

The K&N Heavy Breather features a high-flow, washable and reusable air filter, which allows more air to flow into the engine, resulting in increased power and torque output. The filter is protected by a unique, washable and reusable filter element and a stainless steel outer shield to keep the engine safe from debris.

Some of the benefits of the K&N Heavy Breather for the 2019 Harley Davidson XL1200CX Roadster (74CI) include:

1. Increased horsepower and torque: The K&N Heavy Breather allows more air to flow into the engine, resulting in increased horsepower and torque output.

2. Improved throttle response: The high-flow air filter and improved airflow provided by the K&N Heavy Breather can improve throttle response, making for a more responsive and exciting ride.

3. Aggressive engine sound: The K&N Heavy Breather can provide a deeper and more aggressive engine sound, adding to the overall experience of riding the Harley Davidson XL1200CX Roadster.

Overall, the K&N Heavy Breather is a valuable upgrade for 2019 Harley Davidson XL1200CX Roadster (74CI) owners looking to enhance the performance and sound of their motorcycle. It provides a number of performance benefits, including increased horsepower and torque, improved throttle response, and a more aggressive engine sound, all while maintaining the reliability and durability of the original engine.