Banks Power 25936 - Boost Tube Upgrade Kit, Red powder-coated for 2004.5-2009 Chevy/GMC 2500/3500 6.6L Duramax coupon_15 25-quarts over the stock O

25-quarts over the stock O

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Banks Power 25936 - Boost Tube Upgrade Kit, Red powder-coated for 2004.5-2009 Chevy/GMC 2500/3500 6.6L Duramax coupon_15 25-quarts over the stock OBanks Power 25936 Boost Tube Upgrade Kit, Red powder coated for 2004. 5 2009 Chevy GMC 2500 3500 6. 6L Duramax Banks' huge 3 inch boost tube. Stock tube is smaller diameter with tighter bends which hurts flow. Banks boost tube is 3 inch constant diameter mandrel bent Aluminized Steel with larger radius bends. More air allows for more fuel which means more horsepower. Banks boost tube is larger than the factory pipe and designed to work with the stock