Grimmspeed Post MAF Hose Kit Subaru WRX 2008-2014 / STI 2008-2021

Fitment: This kit fits 2008 - 2014 Subaru WRX and 2008 - 2021 Subaru STI (15 - 17 STI w/o OEM Sound Tube Delete). If you have a 2015 - 2017 Subaru STI with the factory sound generator tube and want to remove it, you can buy the Grimmspeed Post MAF Hose Kit for Subaru STI w/ OEM Sound Tube 2015 - 2017 and GrimmSpeed Sound Plug Delete, or choose the 18+ STI hose to get rid of the sound tube. The factory post MAF hose has performance flaws, but our new Post MAF Hose Kit is a great upgrade. It not only looks better but also fixes those flaws. The hose is made of 4 - ply reinforced silicone, available in red or black. It has a smooth inner surface to improve air flow by removing the pockets from the OE structural corrugated folds. The tapered center portion ensures the inner diameter matches the OEM air box and turbo inlet, preventing air flow interruptions. It offers OEM fitment, so it's easy to install without modification or tuning. The CAD - optimized design provides seamless flow, and high - quality breeze hose clamps are included in every kit. There's also a GrimmSpeed logo to show your love for the brand!

Using this Grimmspeed Post MAF Hose Kit is a breeze. First, make sure your car is turned off and cooled down. Then, remove the old post MAF hose from your Subaru WRX or STI. It's designed for easy install, so you won't need to make any modifications or do any tuning. Just align the new hose with the OEM air box and turbo inlet and use the included high - quality hose clamps to secure it in place. As for colors, you can choose red or black according to your preference. If you have a 2015 - 2017 Subaru STI with the factory sound generator tube and you want to delete it, follow the instructions above and consider getting the additional parts mentioned in the product description. For maintenance, regularly check the hose clamps to make sure they're tight. Also, inspect the silicone hose for any signs of wear or damage. If you notice any issues, replace the parts as needed. That's all there is to it! Enjoy the improved performance of your car with this great hose kit.