We generally do not recommend installing them inside of the vehicle. Each compressor is a sealed unit (water and dust resistant). The kit also comes with a snorkel which is a piece of tubing with a filter cartridge that attaches to the compressor. This allows the compressor to be outside of the vehicle getting wet and dirty, but your compressor is sucking clean air from inside the vehicle.
Complete the job with these highly suggested add-on products.
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