Reinforced Intake Manifolds VHM

VHM has completely redesigned the airbox boot to optimize the intake airflow. The original boot is made of rubber and consequently tends to deform as the internal vacuum increases. This issue is further emphasized when rising temperatures soften the rubber. The VHM boot, depending on the model, is made entirely of carbon or of a highly oil-and-fuel-resistant synthetic material, eliminating possible deformations caused by vacuum and temperature.
The VHM boot ensures better throttle response and a significant performance improvement at low rpm for 4-stroke engines and at high rpm for 2-stroke engines.
For some motorcycle models, multiple boot versions are available, allowing riders to customize the power/torque ratio based on their needs. In these cases, the version recommended by VHM is marked as 'standard'.