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Air and Fuel› Superchargers, Turbochargers and Components

Grimmspeed

Sound Generator Plug Kit

$39.00 $37.00 Save $2.00

SKU: GRM125016

In Stock
In Stock
Ships by Aug 1
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30 Days Return
INSTALL DIFFICULTY
DIY PRO SHOP

Easy — 1–2 hours

Description

Simplify your 2015-17 Subaru STI engine bay with the GrimmSpeed Sound Generator Plug Kit. The factory sound generator system can contribute to a cluttered engine bay and produce unwanted artificial sounds within the cabin. This kit offers a clean solution by plugging the hole left in the intake tract when the stock system is removed. The outside flange is sized for a flush fit, making installation and removal straightforward. A new Breeze hose clamp is included to replace the stock spring clamp, and a cap for the firewall side is also provided, ensuring a complete installation. This product is 100% engineered, tested, and manufactured in the USA. It is a direct fit specifically for the 2015-2017 Subaru STI models, as other STI years do not feature the OE sound generator tube.

MIA's Description

The GrimmSpeed Sound Generator Plug Kit is a direct-fit solution designed to simplify the engine bay of 2015-17 Subaru STI models. It addresses the clutter and artificial sound from the stock sound generator system by replacing it with a precisely machined aluminum plug. This kit ensures a clean installation and a premium look within the engine bay.

Fitment

Fitment Guaranteed

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Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

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Specifications

BrandGrimmspeed
Part NumberGRM125016
CategoryAir and Fuel

Buy with Confidence

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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