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

Some factory parts just don't cut it, and the OE post MAF hose is a prime example. Get rid of it fast and upgrade to GrimmSpeed's all - new Post MAF Hose Kit. It looks great and fixes the performance issues of the original part. This hose kit boosts air flow in two key ways. First, it has a super - smooth inner surface. Unlike the OE hose with its corrugated folds and pockets, our hose is made of 4 - ply reinforced silicone. It's flexible yet strong, designed for maximum flow, easy to install, and won't collapse under vacuum. Second, the tapered center part ensures the inner diameter matches the OEM air box and turbo inlet. Mismatched diameters can disrupt air flow and create vortexes, but our hose is engineered to prevent these problems. Here are some quick features: It comes in red or black, has an OEM fit for easy installation with no need for modification or tuning. The CAD - optimized design offers seamless flow. Each kit also includes high - quality Breeze hose clamps and proudly displays the GrimmSpeed logo.

Using your GrimmSpeed Post MAF Hose Kit is a breeze. First, make sure your vehicle's engine is off and cooled down. Locate the old post MAF hose in your engine bay and carefully remove it. Then, take your new GrimmSpeed hose and align it with the OEM air box and turbo inlet. Since it has an OEM fit, it should slide right in. Use the high - quality Breeze hose clamps included in the kit to secure the hose in place. No modification or tuning is needed, so you can start your engine right away and enjoy improved performance. When it comes to maintenance, check the hose regularly for any signs of wear or damage, like cracks or leaks. If you notice any issues, replace the hose promptly. Keep the hose clean by wiping it down with a soft, dry cloth from time to time. Avoid using harsh chemicals or abrasives on the silicone hose as this can damage it. With proper care, your GrimmSpeed Post MAF Hose Kit will serve you well for a long time.