GrimmSpeed Cast Aluminum Turbo Inlet - 15-21 WRX/FA20

( 4 Reviews )
FA20 Boost Control Solenoid Add-On
Add Post MAF Hose Kit?
Add Dry-Con Panel Filter?

Current stock: 0

Due to HUGE demand for these new turbo inlets, we are currently out of stock on both the 15-16 WRX and 17-21 WRX versions as we manufacture fresh batches of both. We are first working to fulfill 15-16 WRX orders before the end of the month, then shifting production to the 17-21 WRX inlet. You can still place your order and be put in line; we suggest that you do so, or your might miss the next production batch and have to wait even longer. Please contact our customer service via email or phone (612-379-0000) with questions, or check for availability with our retailers, thanks!

Don't risk cracking your OE plastic inlet.

One of the biggest complaints we’ve heard from 2015-21 WRX owners has to do with cracks forming in their OEM plastic turbo inlets from removal, installation or just general wear and tear. As the plastic inlet ages and becomes brittle, it has a tendency to separate around the BPV and/or turbo flange portion of the piece. Since the inlet is one of the most critical components for metered air and consistent performance, cracks or separation can lead to dangerous conditions for the engine. To solve this problem before it happens, we’re proud to introduce the all new GrimmSpeed Aluminum Turbo Inlets.


For the development of The GrimmSpeed Turbo Inlet, we channeled our knowledge of intake and post MAF hose creation to bring you the best-designed and best-flowing piece possible. We began with laser-scanning the area and using our Faro Arm to pinpoint exactly how much room we had to play with during the design process. This not only ensured perfect theoretical fitment, but also allowed us to 3D print multiple versions for real-world testing and confirmation, resulting in an optimized version of the inlet. That final version was able to eliminate the air pockets that impede flow in it's OEM counterpart and gave The GrimmSpeed Inlet superior flow characteristics:

Although the inlet itself isn't meant to net huge gains as a standalone upgrade, it is an essential part of upgrading the intake tract and facilitating the ability for your engine to flow more freely. Best of all, The GrimmSpeed Cast Aluminum Inlet will ensure that you won't ever put your engine in jeopardy due to a crack and resulting change in metered air.



  • A380 Cast Aluminum - Extremely durable, eliminates OEM inlet cracking issues
  • CNC Machined - For perfect fit and sealing surfaces
  • OEM Fitment - Easy install, no modification required
  • Seamless Flow - CAD optimized design eliminates OEM air pockets
  • High Quality Breeze Clamps and Viton O-ring - Included in every kit
  • No Tuning Required - Even when coupled with GrimmSpeed DRY-CON Panel Air Filter and Post MAF Hoses for maximum performance


  • GrimmSpeed Aluminum Turbo Inlet - Subaru 15-16 WRX - 125027 - (MSRP $199)
  • GrimmSpeed Aluminum Turbo Inlet - Subaru 17-21 WRX - 125026 - (MSRP $199)

Install Guide: 

Video - 2015-21 WRX Cast Aluminum Turbo Inlet Installation Guide

4 Reviews

Andrew 16th Jan 2022

Turbo Inlet

The grimmspeed turbo inlet was probably one of the best modifactions i have done to my wrx. The throttle reponse is a lot better than what it was with the stock one, it was very well built and extremely easy to install i would absolutely recommend this product especially since the oem turbo inlet is plastic and seemed bery brittle. Job well done Grimmspeed with yet another product!

dylan 29th Dec 2021


very well built, high quality. it came out as soon as i needed a new one because the plastic oe one sucks and cracked on me so i had a pretty large boost leak. i dont have to worry about that problem anymore.

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