ITEM NAME:Ccv Crankcase Ventilation Line Change Kit For 07.5-17 Dodge 6.7 Cummins 250 W8Q2 Ccv Crankcase Ventilation Line Change Kit For 07.5-17 Dodge 6.7 Cummins 250 W8Q2 Switch to CCV or closed crankcase ventilation systems with the new 6.7L exhaust system. The CCV system discharges crankcase gas into the turbocharger rear air filter, which causes grease to accumulate on the turbine compressor wheel. If the crankcase leaks above normal, these gases will also coat the intercooler, reducing its efficiency. This eliminates oil buildup on the turbo compressor and maintains the cleanliness of the intercooler. The 90Â ° ventilation hose encourages oil drain and helps eliminate dripping. The kit does retain the inventory CCV filter. Colour: Black material: metal Package Content: 1* Breathing Elements 1* 90Â ° exhaust hose 1* small billet plug for air inlet connection 4* clip.Switch to CCV or closed crankcase ventilation systems with the new 6.7L exhaust system. The kit does retain the inventory CCV filter. If the crankcase leaks above normal, these gases will also coat the intercooler, reducing its efficiency.