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
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.
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The GCG TDX Turbo Upgrade offers significant performance enhancements for diesel vehicles, including increased horsepower and torque. This upgrade is particularly beneficial for those who frequently tow heavy loads or engage in off-road driving, providing the necessary power to handle demanding conditions.
With an airflow increase of approximately 20% over the original equipment, the GCG TDX Turbo allows for more efficient combustion, resulting in better fuel efficiency and overall engine performance. This upgrade not only improves driving experience but also enhances the longevity of the engine by reducing strain during heavy use.
Installation Process for GCG TDX Turbo Upgrade
Installing the GCG TDX Turbo Upgrade is designed to be a straightforward process, as it is a bolt-on assembly compatible with Isuzu D-Max and Mazda BT-50 models. The installation can typically be completed with basic mechanical skills and tools, making it accessible for DIY enthusiasts.
For optimal results, however, professional installation is recommended. This ensures that the turbo is fitted correctly and that the ECU is calibrated to maximize performance gains, ultimately leading to a more reliable and efficient vehicle operation.
Customer Testimonials
Many customers have reported significant improvements in their vehicle's performance after installing the GCG TDX Turbo Upgrade. Users frequently highlight enhanced acceleration and smoother power delivery, particularly when towing or driving in challenging conditions.
Testimonials also emphasize the reliability of the product, with many noting that the upgrade has exceeded their expectations in terms of performance and durability. Positive feedback from the diesel community reinforces the upgrade's reputation as a top choice for enhancing diesel vehicle performance.
Warranty and Support for GCG TDX Turbo Upgrade
The GCG TDX Turbo Upgrade comes with a 12-month warranty, providing customers with peace of mind regarding their investment. This warranty covers defects in materials and workmanship, allowing users to enjoy their performance enhancements without worry.
In addition to the warranty, GCG Turbos offers comprehensive customer support, assisting users with installation queries and providing guidance on optimizing performance. This commitment to customer service ensures that users can fully benefit from their turbo upgrade experience.
Benefits of the GCG TDX Turbo Upgrade
The GCG TDX Turbo Upgrade offers significant performance enhancements for diesel vehicles, including increased horsepower and torque. This upgrade is particularly beneficial for those who frequently tow heavy loads or engage in off-road driving, providing the necessary power to handle demanding conditions.
With an airflow increase of approximately 20% over the original equipment, the GCG TDX Turbo allows for more efficient combustion, resulting in better fuel efficiency and overall engine performance. This upgrade not only improves driving experience but also enhances the longevity of the engine by reducing strain during heavy use.
Installation Process for GCG TDX Turbo Upgrade
Installing the GCG TDX Turbo Upgrade is designed to be a straightforward process, as it is a bolt-on assembly compatible with Isuzu D-Max and Mazda BT-50 models. The installation can typically be completed with basic mechanical skills and tools, making it accessible for DIY enthusiasts.
For optimal results, however, professional installation is recommended. This ensures that the turbo is fitted correctly and that the ECU is calibrated to maximize performance gains, ultimately leading to a more reliable and efficient vehicle operation.
Customer Testimonials
Many customers have reported significant improvements in their vehicle's performance after installing the GCG TDX Turbo Upgrade. Users frequently highlight enhanced acceleration and smoother power delivery, particularly when towing or driving in challenging conditions.
Testimonials also emphasize the reliability of the product, with many noting that the upgrade has exceeded their expectations in terms of performance and durability. Positive feedback from the diesel community reinforces the upgrade's reputation as a top choice for enhancing diesel vehicle performance.
Warranty and Support for GCG TDX Turbo Upgrade
The GCG TDX Turbo Upgrade comes with a 12-month warranty, providing customers with peace of mind regarding their investment. This warranty covers defects in materials and workmanship, allowing users to enjoy their performance enhancements without worry.
In addition to the warranty, GCG Turbos offers comprehensive customer support, assisting users with installation queries and providing guidance on optimizing performance. This commitment to customer service ensures that users can fully benefit from their turbo upgrade experience.
