Eventuri Toyota GR Yaris/Corolla Carbon Turbo Inlet Tube – Matte EVE-GR4-CFM-CHG

Eventuri Toyota GR Yaris/Corolla Carbon Turbo Inlet Tube – Matte EVE-GR4-CFM-CHG

The Eventuri Toyota GR Yaris/Corolla Carbon Turbo Inlet Tube – Matte EVE-GR4-CFM-CHG is engineered to deliver a larger and less restrictive air supply to the turbocharger than the factory component. Designed specifically for the Toyota GR Yaris and Toyota GR Corolla, this upgraded turbo inlet combines increased internal volume with a smooth airflow path to support improved turbocharger efficiency and responsiveness.

Through extensive development and testing, Eventuri redesigned the factory turbo inlet to increase its internal volume from 1,300cm³ to 2,200cm³—an increase of almost 70%. The greatest improvement is concentrated around the critical bend leading into the turbocharger, where the original component is most restrictive. This enlarged air reservoir provides the turbocharger with a less restrictive source of air, helping reduce wastegate duty cycle while allowing peak boost to be reached earlier in the RPM range.

Performance

Independent dyno testing conducted by Limit+1, a GR4 specialist, recorded the following wheel gains on a Toyota GR Corolla equipped with an Eventuri intake and a stock ECU. During testing, only the factory turbo tube was replaced with the Eventuri version.

Reported results include:

• 14 whp and 19 ft-lb of torque in the mid-range
• 9 whp and 9 ft-lb of torque at peak RPM

These figures are based on the supplied test data. Actual results may vary depending on vehicle condition, supporting modifications, and testing conditions.

Design and Engineering

Every component of the Eventuri turbo inlet tube has been engineered to optimise airflow while maintaining durability and future upgrade flexibility. The primary tube is manufactured from 100% prepreg carbon fibre with no fibreglass, allowing a smooth internal surface that promotes laminar airflow while providing the rigidity needed to resist deformation under turbocharger vacuum. A custom nitrile hose connects the carbon tube to the turbocharger. Reinforced with ribs to withstand vacuum forces, it provides a smooth internal transition between the carbon tube and the turbo flange.

Completing the system is a precision CNC-machined aluminium turbo flange, which bolts directly to the turbocharger. Its modular design allows the flange to be replaced with alternative versions for larger hybrid turbochargers, available separately. The carbon tube also incorporates an OEM-style mounting point and breather ports for a plug-and-play installation.

Comparison with the OEM Turbo Tube

Compared with the factory turbo inlet, the Eventuri design offers a substantially larger internal volume and a smoother airflow path into the turbocharger.

Key design features include:

• Internal volume increased from 1,300cm³ to 2,200cm³
• Almost 70% greater air capacity
• Enlarged elbow section leading to the turbocharger
• Optimised bend radius for smoother airflow
• Larger encapsulated air reservoir immediately before the turbo
• Reduced restriction compared to the factory turbo tube

Package Contents

Each Eventuri GR4 Carbon Turbo Tube Set includes:

• Carbon Fibre Turbo Tube
• CNC Machined Turbo Flange
• Custom Nitrile Hose

Fitment of the Eventuri Toyota GR Yaris/Corolla Carbon Turbo Inlet Tube – Matte EVE-GR4-CFM-CHG

Designed for:

• Toyota GR Yaris
• Toyota GR Corolla

Before ordering, verify compatibility with your exact vehicle specification.

Why Choose the Eventuri Toyota GR Yaris/Corolla Carbon Turbo Inlet Tube – Matte EVE-GR4-CFM-CHG?

The Eventuri Carbon Turbo Inlet Tube combines advanced airflow engineering with premium materials to deliver a carefully developed upgrade for the GR4 platform. Its increased internal volume, smooth carbon fibre construction, and modular turbo flange are designed to support improved turbocharger response while providing compatibility with future turbo upgrades.

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