JM Turbo For Volkswagen Silicone Hose VW Hose Jetta Golf Beetle Audi TT 1.8T MK4 Turbo Inlet Air Intake Hose Kit BLUE New Brand new hose, Highest quality, hassle-free return. 4-Ply Nylon for Strong Reinforcement; 4.5mm Thickness Color: Blue. Compressor Side: 1.75" (45mm); MAF Size: 2.75" (70mm); Tolerance: 0.5mm. Model with the newer style 25mm PCV valves, requires a separate purchase of a 25mm&gt;19mm adapter.