GCG TDX Turbo Upgrade RHS4V-VIKZ Isuzu D-Max MU-X Mazda BT-50 3.0L 4JJ3 2020-on

Description

Overview

The GCG TDX Turbo Upgrade RHS4V-VIKZ is a direct bolt-on performance turbo for the latest Isuzu and Mazda 3.0L 4JJ3 platforms. Built in-house by GCG, every TDX unit uses a specifically engineered billet compressor wheel that delivers around 20% more airflow than the factory turbo. The result is stronger mid-range torque, improved top-end power, and better efficiency when paired with suitable tuning and supporting modifications. Supplied as a complete bolt-on assembly with gaskets for re-fitment and backed by a 12-month warranty, this upgrade is ideal for owners seeking reliable, repeatable gains for touring, towing, or off-road use.

Key Features

• True bolt-on upgrade for 4JJ3 platforms (no fabrication required)
• TDX billet compressor wheel for increased airflow (~20% over stock)
• Enhanced response and stronger torque across the rev range
• Designed and built in-house by GCG
• Supplied with gaskets for straightforward installation
• 12-month manufacturer warranty
• Designed for off-road use only

Specifications

• Model: RHS4V-VIKZ (TDX series)
• Manufacturer Code / SKU: 1000-01601
• Approx. airflow increase: ~20% over OE
• Unit Weight: 9.0 kg
• OE Reference (from page URL): 8984808191
• Materials: Billet aluminium compressor wheel, OE-grade turbine housing and CHRA components
• Measurements: Factory-matched flanges and centreline to ensure direct fitment (mm dimensions not specified by manufacturer)

What’s in the Box

• GCG TDX Turbocharger assembly – RHS4V-VIKZ
• Gasket set for re-fitment
• Basic fitting notes (see PDF/links below)

Compatibility

• Isuzu D-Max 3.0 4JJ3-TCX (2021-on)
• Isuzu MU-X 3.0 4JJ3 (2021-on)
• Mazda BT-50 3.0 4JJ3 (2020-on)

Delivery & Lead Times

• Free Australia-wide shipping on orders over $249
• Typical dispatch times depend on stock availability; please contact us for current lead times

Professional Fitting Service on the Sunshine Coast

For the best results, we recommend professional installation and ECU calibration. Sunshine Coast Diesel Tuning offers expert fitting and custom dyno tuning for late-model common-rail diesels, including 4JJ3 platforms. Our technicians ensure correct oil priming, boost control setup, and post-install checks to protect your investment and maximize performance. Book your fitting and tune with Sunshine Coast Diesel Tuning.