GrimmSpeed Post-MAF Pipe Kit - 2022+ Subaru WRX


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GrimmSpeed SKU: GRM113050

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Maximize Your 2022+ WRX's Factory Airbox Without Tuning!

The GrimmSpeed Post MAF Pipe Kit is an excellent upgrade for your FA24-powered WRX. This kit removes the restrictive corrugated structural folds of the stock plastic unit with larger diameter CNC mandrel bent aluminum tubing. The 3" tubing and large radius bends are designed to reduce restriction and maximize the performance of your WRX's factory intake box. This results in faster spool times, which can significantly enhance your driving experience.

For the 2022+ WRX models, Subaru has included a federally mandated Hydrocarbon filter into the stock airbox. Our Post-MAF Pipe Kit retains this element, keeping your vehicle's emissions in check.

In addition, the kit now comes with a beautiful textured black powdercoat finish, which not only looks great but also provides extra durability and protection against the elements. The GrimmSpeed Post MAF Pipe Kit is a must-have for any 2022+ WRX owner looking to spruce up their engine with an OEM+ look and fitment. Pair your GrimmSpeed Post-MAF Pipe Kit with one of our


  • Seamless Flow - CAD optimized design to maximize performance from the stock airbox
  • No Tuning Required - Even when coupled with GrimmSpeed DRY-CON Panel Air Filter for maximum performance
  • Maintains OEM Emissions - Allows you to retain the hydro-carbon filter
  • 4-Ply Stainless Steel-Reinforced Silicone - Extremely durable, yet flexible
  • OEM Fitment - Easy install, no modification required


  • 2022+ Subaru WRX (All trims)


2022+ Subaru WRX Post-MAF Pipe Kit Installation Guide