This hose essentially delivers boosted air – typically from the turbocharger or supercharger – right to the throttle body. It’s a reinforced rubber or silicone tube designed to withstand pretty high pressures and temperatures. It needs to be flexible enough to connect everything, but strong enough not to collapse or split under stress. Some have bends and multiple layers to handle the heat and pressure effectively. Think of it as a vital link in the engine’s breathing system. The turbo or supercharger forces air into this hose, and the throttle body controls how much of that air gets into the engine. Without a good seal and a strong hose, you lose boost pressure, and the engine won't perform as it should. It’s part of the intake system, right after the turbo or supercharger and before the air gets metered into the engine. If this hose fails, you’ll notice it pretty quickly. You'll likely have a loss of power, the engine might run lean, and you could get a check engine light. A collapsed or cracked hose lets that pressurized air escape, meaning less air gets into the engine to make power. It’s a fairly small part, but it has a big impact on how the engine runs. A failing hose can also sometimes cause whistling sounds under acceleration because of the escaping air. You can find a good replacement at places like Fixparts Online, and it’s definitely something you want to address quickly to prevent bigger issues down the road. Your satisfaction is our priority: Pressure Hose (MPN 11727508270) includes a 12-month warranty!

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