Replaces Part Number: 16100-HN1-A43. Replacement for Honda 400 TRX400EX 2x4 1999-2008, replacement for Honda TRX400X 2x4 2009 2012-2014. The perfect solution for the appropriate ratio of air and fuel mixture, provides great power and torque. It's an ideal replacement for your stock one, and will make your engine run like new. Beautifully built with smooth surface, improved air intake holes to improved airflow structure, stable performance and sensitive reaction.
