Fitment Information: This Perrin Turbo Sump Restrictor fits 2018 - 2025 Subaru WRX, 2017 - 2018 Subaru Forester XT, 2019 - 2024 Subaru Ascent, 2020 - 2024 Subaru Legacy XT, and 2020 - 2024 Subaru Outback XT. Many Subaru owners face issues like burning oil smell and blue exhaust smoke after installing aftermarket J - Pipes or turboback exhaust systems. These parts change exhaust pressure, causing engine oil to leak from turbo seals. The PERRIN Turbo Sump Restrictor solves this problem. It makes the turbo sump pump more efficient at sucking oil from the turbo sump, creating a slight vacuum. This balances exhaust pressure and vacuum on the turbo seals, greatly reducing oil leakage. It doesn't affect oil flow to the turbo or cause wear. This plug - and - play restrictor is easy to install on most 2018 and newer Subarus. No hose cutting is required, and installation is quick. Just click on the 'Installation Guide' at the bottom of this description for full instructions. The restrictor body is black anodized CNC aluminum, and the barbed fitting is nickel - plated zinc. It comes with a 5 - year manufacturer warranty. What's in the box: (1) PERRIN Sump Pump Restrictor, (1) Size 6 Clamp, (1) 1/4 - 28 Plug, and Warranty & Instructions. Note: This product won't fix blue - smoke issues due to blown engines.
Using the Perrin Turbo Sump Restrictor is a breeze. First, make sure your Subaru model is one of the compatible ones (2018 - 2025 WRX, 2017 - 2018 Forester XT, 2019 - 2024 Ascent, 2020 - 2024 Legacy XT, and 2020 - 2024 Outback XT). Since it's a plug - and - play device, you don't need to cut any hoses. Just follow the installation guide provided in the box for a quick setup. Remember, this product won't fix blue - smoke problems caused by a blown engine. For maintenance, there's not much you need to do. Just keep an eye on the turbo system in general. If you notice any unusual noises or performance changes, it's a good idea to check the restrictor. And with the 5 - year manufacturer warranty, you can have peace of mind knowing you're covered.
