Elevate your Yamaha XT 660 R/X (04-14) performance with the DNA Air Box Cover S2 and Filter combo. This set includes a premium Stage 2 air filter engineered to provide superior airflow and exceptional filtering efficiency of 98-99%. The stylish inox laser-cut frame not only enhances the aesthetics of your motorcycle but also ensures uncompromised performance. Designed for easy installation into your existing factory air box, this kit is an ideal solution for those seeking to boost horsepower and acceleration on the race track or closed courses. Please note that this modification is intended for race and track use and may not be road-legal in some regions. Fuel recalibration is recommended for optimal results.


DNA High Performance Filters are engineered to unlock the full potential of your motorcycle’s engine. Manufactured in Europe with advanced materials and precision techniques, DNA filters offer significantly increased airflow while maintaining exceptional filtration efficiency. This balance results in noticeable gains in horsepower, throttle response, and overall engine performance, whether you’re on the street, track, or trail. DNA filters are washable and reusable, offering long-term value and reduced environmental impact. Designed to be a direct replacement for OEM filters, installation is simple and effective.
Trusted by performance riders and racers worldwide, DNA filters are the choice for those who demand more from their machine without compromising engine protection.