Introducing a bolt on intake solution for your b6s4 4.2. Our 85 mm 6061 high polished aluminum intakes increase air follow while marginally lowering intake air temperatures. Each intake comes with coupler, clamps, billet maf hardware and filter and is backed by a lifetime warranty against critical failure and defects in craftsmanship. Constructed using all vibrant performance piping and coupler. Also fits under plastic engine covers.