3.5" Short RAM / Cold Air Compreor / Intake Inlet Velocity Stack / Turbo Horn Kit EP-BOV1009DDLBItem Condition: Brand NewMaterial: High Quality CNC Machined T6061 Aircraft AluminumAists Engine to Draw In More Denser Air to Help With Throttle ResponseHelps with Higher Explosive Horsepower OutputPowder-Coated and Anodized for Wear and Heat ResistanceLightweight with High Air Flow Racing DesignOutlet/Piping Outer Diameter: 3.5" (OD) (For Intake/Turbo Piping Size of 3.5")Profeional Installation is Highly Recommended (No Instruction Included)Package Content:1 x Full Aluminum Velocity StackWithout Silicon hose and clampProfeional Installer Is Highly Recommend(No Instruction Included)** IMPORTANT INFORMATION **Picture purely for illustration purposes only.Allitems are Brand New unle stated otherwise on the listing. We sell DIY(Do It Yourself) Items with a few exceptions. We take no responsibilityin teaching you how to install. Profeional installation is stronglyrecommended.