Grimmspeed Post MAF Hose Kit Subaru WRX 2002-2007 / STI 2004-2007

Some original equipment (OE) parts just look okay, but the factory post MAF hose is a real letdown. The sooner you replace it, the better for your car. GrimmSpeed's brand - new Post MAF Hose Kit is here to save the day. It not only looks great but also fixes the performance issues of the OE hose. This hose kit has two main features that boost air flow. First, it has a smooth inner surface. Unlike the OE hose with its structural corrugated folds and pockets, the GrimmSpeed hose is made of 4 - ply reinforced silicone. This material is flexible yet strong, allowing for a design that maximizes air flow. It's also a breeze to install and won't collapse under vacuum. Second, the hose has a tapered center part. This ensures that the inner diameter matches the OEM air box and turbo inlet. A mismatched diameter can cause steps in the hose, interrupting air flow and creating small vortexes. The GrimmSpeed hose is specifically designed to prevent these problems. Here are some quick specs: - 4 - Ply Reinforced Silicone: Super durable and available in red or black. - OEM Fitment: Easy to install, no need for modification or tuning. - Seamless Flow: Thanks to its CAD - optimized design. - High - Quality Breeze Hose Clamps: Included in every kit. - GrimmSpeed Logo: Show off your favorite brand!

Using your GrimmSpeed Post MAF Hose Kit is a piece of cake. First, locate the factory post MAF hose in your engine bay. It's usually connected between the air box and the turbo inlet. Carefully remove the old hose by loosening the hose clamps. Once the old hose is out, take your new GrimmSpeed hose. Align the tapered center portion with the OEM air box and turbo inlet. Make sure the inner diameters match up perfectly. Then, put the high - quality breeze hose clamps in place and tighten them gently. As for maintenance, there isn't much you need to do. Every few months, take a quick look at the hose to make sure there are no signs of damage or wear. If you notice any cracks or tears, it's time to replace the hose. Also, keep in mind that this hose is made of 4 - ply reinforced silicone. While it's very durable, try to avoid exposing it to extreme heat or harsh chemicals, as this could potentially damage the material. That's it! With your new GrimmSpeed hose, you'll enjoy better air flow and performance for a long time.