This Perrin turbo inlet hose is a must - have for your stock Subaru WRX (2002 - 2007), STI (2004 - 2021), and Forester XT (2004 - 2008). It comes with a 3 - inch inner diameter and is made of black silicone material, supported by stainless steel wire inside. This hose significantly boosts airflow, increasing horsepower, reducing turbo spool time, and enhancing acceleration. The 5 - ply silicone wire mesh construction makes it highly durable and resistant to heat soak. With a sleek interior, it allows more air to enter the system, generating more power. It also comes with a 5 - year manufacturer warranty. Installation takes about 3 hours and no tuning is required. Installation instructions are provided. Note that you may need to remove the intake manifold for installation, and it works with the factory turbo, but the 3 - inch turbo inlet won't fit the factory turbo.







Using this Perrin turbo inlet hose is a great way to enhance your Subaru's performance. To install it, first, you'll need to set aside about 3 hours. You might have to remove the intake manifold during the process. Just follow the provided installation instructions, and you won't need to do any tuning. Once installed, it'll start improving your car's airflow, horsepower, and acceleration right away. As for maintenance, keep an eye on the silicone hose for any signs of wear and tear. Since it's made to resist heat soak, it should last a long time, but if you notice any damage, contact the manufacturer as it comes with a 5 - year warranty. Also, remember that while it works with the factory turbo, the 3 - inch inlet won't fit the factory turbo, so don't try to force it.