Perrin Firewall Grommet 2015-2021 WRX / 2015-2021 STI | Leak-Proof Seal | Engine Bay Wiring Accessory
Overview
The Perrin Firewall Grommet is a precision-engineered solution designed to provide a clean, professional pass-through for wiring, vacuum lines, or boost gauge tubing in the engine bays of 2015-2021 Subaru WRX and WRX STI models. This grommet ensures that your vehicle’s firewall remains sealed against fumes, water, and debris, maintaining the integrity and comfort of your cabin environment. It is an essential upgrade for Subaru enthusiasts who frequently install aftermarket electronics or sensors that require routing through the firewall.
Crafted from durable, heat-resistant rubber, the Perrin Firewall Grommet offers superior flexibility compared to factory grommets, accommodating various wire and tubing sizes without cracking or degrading over time. Its low-profile design integrates seamlessly with the vehicle’s firewall, preserving the OEM appearance while providing enhanced functionality. Perrin Performance’s commitment to quality and fitment ensures this grommet meets the demands of Subaru owners who prioritize reliability and clean engine bay aesthetics.
By using this grommet, Subaru WRX and STI owners can achieve a tidy and secure wiring setup that supports performance upgrades like electronic boost controllers, wideband O2 sensors, or aftermarket sound system wiring. The straightforward installation requires no permanent modifications, making it a practical and effective solution for maintaining your vehicle’s performance and reliability.
Features & Specifications
This Perrin Firewall Grommet is engineered specifically for 2015-2021 Subaru WRX and WRX STI models and features a low-profile, leak-proof seal. Constructed from durable rubber, it delivers superior heat resistance and flexibility for Subaru enthusiasts seeking a clean and reliable firewall pass-through solution.
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Brand: Perrin Performance
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Product: Firewall Grommet 2015-2021 WRX / 2015-2021 STI
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Part Number: ASM-GAU-120
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Fitment: 2015-2021 Subaru WRX / 2015-2021 Subaru WRX STI
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Material: Heat-resistant rubber
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Finish: Black matte
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Construction: Molded rubber
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Origin: Made in USA
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Hole Diameter Compatibility: Fits 1.25” to 1.4” firewall holes
Key Benefits
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Durability: Heat-resistant rubber construction withstands engine bay temperatures and flexing without cracking or degrading.
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Leak Protection: Provides a professional, leak-proof seal to keep fumes, water, and debris out of the cabin.
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Fitment: Designed specifically for 2015-2021 WRX and STI firewall contours for a seamless OEM+ integration.
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Flexibility: Accommodates various wiring and tubing sizes, ideal for boost controllers, wideband sensors, and more.
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Installation: Simple bolt-on solution requiring no permanent modifications or cutting of factory components.
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Clean Engine Bay: Helps maintain an organized and professional wiring setup, enhancing both aesthetics and functionality.
What's Included
- 1× Perrin Firewall Grommet 2015-2021 WRX / 2015-2021 STI
- Installation instructions
Installation & Compatibility
Installation of the Perrin Firewall Grommet is straightforward and DIY-friendly, requiring only a properly sized hole (1.25” to 1.4”) drilled into the firewall sheet metal. No cutting or permanent modifications to the vehicle are necessary, making it an accessible upgrade for most Subaru enthusiasts. The grommet fits precisely in the firewall opening, providing a secure seal without additional hardware. This part is compatible with all 2015-2021 Subaru WRX and WRX STI models, but verifying fitment for your specific year and trim is recommended before installation.
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Professional Installation: DIY-Friendly
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Modifications Required: Drilling a 1.25” to 1.4” hole in firewall sheet metal
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Verify Compatibility: Confirm fitment for your specific year and trim level
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