K-SPEED HM034J is a custom part for the Honda Monkey 125.
【Compatible Models】
・Honda Monkey 125
【Product Features】
・Diabolus series custom part
【Pre-Order Confirmation】
Note:Compatible with models equipped with an O2 sensor on the cylinder head.
This muffler is designed exclusively for models where the stock lambda sensor is mounted directly on the cylinder head (rather than on the muffler pipe itself).
Since the 2026 Honda Monkey has the lambda sensor located on the cylinder head side, there is no need to connect or move the sensor to the muffler side. The original sensor can be used in its stock position on the cylinder head, allowing for smooth installation without any modification or replacement of the sensor.
Before ordering, please confirm that your vehicle's model, displacement, and year meet the compatibility requirements.
