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Volant 35066 Intake scoop for 05-09 GM 6.6L Duramax w/ Volant Intake Systems This accessory scoop maintains the horsepower gains and increases mpg only during highway driving. The accessory scoop attaches to the bottom of the Volant air box and is routed down to the tow hook located in the valence under the bumper. Note: extreme off-road through streams or creeks at a high rate of speed is not recommended. Pre-filters are recommended when you install any of our CAS Cool Air Scoop or go serious off-roading. | 
