Available in Two Configurations:

• Full Kit – 70026-BT001

• Carbon Intake Box Only – 70026-BT002

Product Overview

The HKS Cold Air Intake System for the 2023+ Toyota GR Corolla is a premium carbon intake solution designed to improve intake air temperature control, airflow efficiency, and engine bay aesthetics for the G16E-GTS turbocharged platform.

This system combines a dry carbon intake air box with HKS’s proven Racing Suction intake system (Full Kit version) to deliver improved airflow characteristics while shielding the filter from engine bay heat.

HKS engineered this intake specifically for the GR Corolla’s AWD layout and tight engine bay packaging, ensuring proper fitment and smooth airflow transition from filter to turbo inlet.

Option 1: HKS Cold Air Intake Full Kit

Part #70026-BT001

Includes:

• Dry Carbon Cold Air Intake Box

• HKS Racing Suction Intake System

• Polished Aluminum Intake Piping

• High-Flow Intake Filter

• Complete hardware for full replacement of OEM intake system

What It Does

This replaces the factory intake box and rubber inlet piping with a complete high-flow intake system.

Benefits:

• Increased intake airflow capacity

• Reduced restriction compared to stock rubber hose

• Improved turbo response

• More pronounced intake sound under boost

• Lower intake air temps due to carbon heat shielding

• Full visual upgrade in engine bay

This is the version for customers who want:

• Maximum intake performance

• Audible turbo induction sound

• A full intake upgrade from filter to turbo

Option 2: HKS Cold Air Intake Carbon Box Kit Only

Part #70026-BT002

Includes:

• Dry Carbon Cold Air Intake Box

• Designed to pair with existing Racing Suction intake

What It Does

This option is ONLY the carbon intake air box. It does NOT include the Racing Suction intake or aluminum piping.

Benefits:

• Heat shielding for an existing HKS Racing Suction system

• Cleaner, premium carbon engine bay appearance

• Improved isolation from hot engine bay air

• Retains your current intake hardware

This is for customers who:

• Already own the HKS Racing Suction intake

• Want to upgrade to the carbon air box

• Do not need full intake piping replacement

Key Features (Both Versions)

• Designed specifically for 2023+ GR Corolla (GZEA14H)

• G16E-GTS engine compatibility

• Dry carbon construction for heat resistance and premium finish

• Engineered airflow design to support performance builds

• Precision fitment for AWD chassis

Performance Expectations for GR Corolla

When paired with tuning and supporting modifications, the Full Kit improves airflow efficiency and enhances turbo response.

The Carbon Box option primarily improves intake air isolation and engine bay aesthetics, with modest airflow benefits when paired with a high-flow intake.

Neither version requires tuning for installation, but tuning can help maximize gains when combined with other upgrades.

Frequently Asked Questions (FAQ)

What is the difference between the Full Kit and the Box Kit?

The Full Kit (70026-BT001) includes the carbon air box AND the Racing Suction intake system with aluminum piping.
The Box Kit (70026-BT002) includes ONLY the carbon intake box.

If I already have an HKS Racing Suction intake, which one do I need?

You only need the Carbon Box Kit (70026-BT002).

Will this fit all GR Corolla trims?

Designed for 2023–2025 Toyota GR Corolla (GZEA14H). Always confirm trim compatibility before ordering.

Does this require tuning?

No. Installation does not require tuning. However, performance gains increase when paired with ECU calibration.

Does it increase intake sound?

The Full Kit will noticeably increase turbo induction sound.
The Box Kit alone will not significantly change sound unless paired with Racing Suction.