Grimmspeed Sound Generator Plug Kit (15-17 STI Only)

SKU: 125015

$ 35


Sound Generator Plug Kit for 2015 - 2017 Subaru STI by GrimmSpeed

The stock sound generator is an unnecessary system that contributes to a cluttered engine bay and can give an unwanted, artificial sound inside of the car. The problem with getting rid of this clunky setup is that you’re left with a hole in the intake tract. The Grimmspeed Sound Generator Plug Kit is your solution.

This piece is a high quality machined, anodized and laser-etched aluminum plug that is designed to perfectly contour and seal inside the stock post-MAF hose on a 15-17 STI. The outside flange is sized for flush fitment, making installation and removal incredibly easy. Once installed there is a subtle flash of anodized aluminum with the GrimmSpeed logo visible from all angles.

The plug is available with either a black or red anodized finish and laser-etched GS logo for a high-end, premium look in the engine bay and requires no modification to install. A new Breeze Hose Clamp is included to replace the stock spring clamp, along with a cap for the firewall side.


  • 6061 Billet Aluminum
  • Option of Red or Black Anodized
  • Breeze Hose Clamp and Rubber Cap Included for a Complete Installation
  • 100% Engineered, Tested, and Manufactured in the USA
  • Direct-Fit for 2015-17 STI Only

Please Note:


  • 2015 - 2017 Subaru STI

What's In The Box?

  • 1 - Intake Plug
  • 1 - Firewall Plug
  • 1 - Hose Clamp


  • GrimmSpeed Limited Warranty

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