Looking to spruce up your engine bay? The factory post MAF hose isn’t exactly winning any beauty contests, and honestly, it’s time to swap it out for something that not only looks good but performs better too. Enter the GrimmSpeed Post MAF Hose Kit. This isn’t just a pretty face; it addresses the shortcomings of the stock part while giving your ride a serious upgrade.
Here’s the deal: the GrimmSpeed hose is designed with two standout features that really make a difference. First off, we’ve got a smooth inner surface that eliminates those annoying pockets caused by the OE corrugated design. Sure, those folds help with flexibility during installation, but they can also mess with airflow. Our hose is made from reinforced silicone, which means it’s flexible enough for easy installation but still tough enough to hold its shape under vacuum. No more worrying about collapsing hoses!
The second feature is a tapered center section that ensures a perfect match with your OEM air box and turbo inlet. If the diameters don’t line up, you can end up with airflow disruptions and little vortexes that just aren’t ideal. We designed this hose specifically to avoid those pitfalls, ensuring smooth airflow all the way through.
Pair this hose with the GrimmSpeed DRY-CON Panel Air Filter, and you’ll be maximizing your factory intake system like a pro, all while you save up for a full GrimmSpeed Intake upgrade down the road.
If you own a Subaru Forester XT (2004-2008), STI (2004-2007), or WRX (2002-2007), the GrimmSpeed Red Post MAF Hose Kit is a must-have. It’s time to ditch that factory hose and give your engine bay the upgrade it deserves.
Other Part Numbers:
GrimmSpeed #GRM125010
⚠ WARNING:
Cancer and Reproductive Harm
https://www.P65Warnings.ca.gov
| Vehicle Make/Model | Year | Trims |
|---|---|---|
| Subaru Forester | 2004-2005, 2008 | XT |

Grimmspeed is an automotive aftermarket company that was founded in 2006 by Justin Grimm. They specialize in creating parts for the exhaust system for various automotive vehicles. Grimm has always had this passion for cars and had always wanted to improve his vehicle’s performance. After numerous trials, he was able to perfect his craft and later on decided to turn it into his career. Today, they have become one of the leading brands when it comes to producing high-performance exhaust systems.
Expanding their Product OfferingThe company initially manufactured parts for Subaru. But as the company expanded, they started offering parts for other brands such as Ford, Mitsubishi, Hyundai, and Mazda. They now offer parts such as intercoolers, intake, exhaust, engine pulleys, gaskets, boost controllers, phenolic spacers and so much more.
Continuous Product DevelopmentGrimmspeed never stops in finding ways to produce innovative products and is always on the push to keep their products up to date. With the rapid change in automotive technology, it is a must that their product is able to adapt to this change for it to satisfy the demand of its users. This is the reason why the company has gained the trust of many tuners all around.
Purchase Grimmspeed Product at Vivid RacingBuilt by an enthusiast for fellow enthusiasts.
If you want a product that is designed to improve the performance of your vehicle, then Grimmspeed is the brand for you. To know more about Grimmspeed, visit Vivid Racing and check out their list of products that would fit your specific needs.