If improving performance without sacrificing fuel economy is your desire, then the EMPI EPC 34 Dual Kits are the way to go. All Kits feature: Aluminum Alloy Hex Bar with Steel Ball Ends – Sealed Aircraft Heim Rod Ends – High Flow Aluminum Intake Manifolds -Thick High Strength Steel Linkage Mounts – Gauze High Flow Air Cleaner Assemblies – Coil Relocation Mount – Brass Fuel Tee – Detailed and Illustrated Instructions – Attractive EMPI Packaging