Forge Motorsport inlet duct for Toyota Corolla GR

Building on the success of their Yaris GR intake solutions, Forge Motorsport introduces the FMINLD4 Carbon Fibre Inlet Duct for the Toyota GR Corolla. Designed to significantly reduce and stabilize inlet air temperatures (IATs), this high-performance duct ensures consistent engine output during track use or spirited driving.

Developed using 3D scanning and SolidWorks CAD, the duct replaces the factory shroud with a dramatically larger, free-flowing component that maximizes cold air feed into the stock airbox. In both lab and track testing, it has proven to outperform the OEM setup by delivering lower and more consistent IATs, preventing heat soak and maintaining optimal performance even under full throttle.

Constructed from prepreg 2x2 twill carbon fibre, autoclave-formed from billet tooling and finished in a UV-protected gloss gel coat, the duct adds visual appeal to the engine bay while maintaining lightweight durability. The design ensures airflow to both the upper and lower airbox openings, addressing the factory system’s key weaknesses.

Key Features:

• Lower and more consistent inlet air temperatures
• Significantly larger than OEM duct
• Precision-engineered using CAD and CFD
• Prepreg 2x2 twill carbon fibre construction
• Easy installation with factory fit
• Part of Forge’s Hi Flow performance range
• Backed by Forge Motorsport’s Lifetime Warranty
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A functional and visual upgrade for any GR Corolla owner serious about performance and quality.