Why do you suggest adding more than one Hiclone on many vehicles?
Some vehicles can only have one Hiclone installed as there just isn’t the space to fit any more to be effective. Having more hiclones isn’t always better but in many situations it can be. For example many vehicles like Turbo charged vehicles get better results with a minimum of 2 Hiclones, one before and one after the Turbo or intercooler but others can often be added both before the turbo and after the turbo to these to further improve airflow efficiency, This is also true on normally aspirated vehicles. The reason for this is that the hoses and pipes that the air flows through are often quite long and whilst the tornado effect will continue down a long pipe and around numerous bends etc, it does reduce in rpm and effectiveness slightly the further it has to travel due to the laws of physics, everything wants to go straighten out! In the case of a petrol normally aspiratted engine we often add a Hiclone as close as possilbe to the air filter to improve flow through those hoses and the
