Isuzu D-Max 3.0/1.9 TD 2022+ DeGraaf Exhaust System

Isuzu D-Max 3.0 / 1.9 TD 2022+ DeGraaf Performance Exhaust System

Upgrade your Isuzu D-Max 3.0 TD or 1.9 TD with a DeGraaf Performance Exhaust System, engineered to optimise exhaust flow and improve efficiency throughout the rev range.

Designed for the 2022+ Isuzu D-Max, this performance exhaust system is aimed at improving throttle response, turbo response, exhaust gas flow and overall drivability, while giving your D-Max the distinctive DeGraaf performance sound.

The system is an excellent upgrade for D-Max owners who use their vehicle for daily driving, touring, towing, overlanding and off-road applications.

DeGraaf Performance Benefits

DeGraaf develops its performance exhaust systems around improved exhaust flow and reduced restriction. For the D-Max turbo-diesel platform, this can contribute to:

• Potential improvement in power and torque
• Improved throttle response
• Reduced turbo lag
• Improved turbo response
• Improved exhaust gas flow
• Potentially lower exhaust gas temperatures
• Improved efficiency under load
• Stronger and deeper exhaust sound
• Additional performance headroom for other modifications

Actual results will vary depending on the vehicle, engine condition, ECU calibration, fuel quality and other modifications.

Choose the Correct System for Your Engine

This product is available for the following D-Max applications:

Isuzu D-Max 1.9 TD – 2022+

The official DeGraaf application for the Isuzu D-Max 1.9 2022-onwards uses the Best of Both Worlds configuration. DeGraaf lists a 63mm stainless-steel front pipe followed by 76mm stainless-steel intermediate, rear and tail-pipe sections.

System includes:

• 63mm Stainless Steel Front Pipe
• 76mm Stainless Steel Intermediate
• 76mm Stainless Steel Rear
• 76mm Stainless Steel Tail Pipe

This configuration is designed to provide a balance between improved performance and an enjoyable exhaust note without making the vehicle unnecessarily loud.

Isuzu D-Max 3.0 TD – 2022+

The 3.0 TD Gen 7 D-Max is also available with a DeGraaf 76mm stainless-steel performance exhaust system. Current South African fitment listings identify the application as the Gen 7 D-Max 3.0 TD and specify a 76mm full system.

System configuration:

• 76mm Stainless Steel Front Pipe
• 76mm Stainless Steel Intermediate
• 76mm Stainless Steel Rear
• 76mm Stainless Steel Tail Pipe

Important: Confirm the exact 3.0 TD system and sound configuration with HJM Offroad before ordering, as the current DeGraaf manufacturer page provides the detailed published specification for the 1.9 TD application, while the 3.0 TD specification is confirmed through current South African fitment/product information.

The result is a D-Max that sounds more purposeful while retaining the practicality expected from a modern turbo-diesel bakkie.

Ideal for Towing & Touring

The D-Max is frequently used for towing trailers, caravans and off-road equipment.

Improved exhaust flow can be particularly beneficial when the engine is working under sustained load. DeGraaf specifically highlights lower exhaust gas temperatures as a potential benefit of its performance exhaust systems, which can be advantageous for vehicles regularly used for towing.

The system is therefore well suited to:

• 4×4 touring
• Overlanding
• Caravan towing
• Trailer towing
• Long-distance travel
• Off-road builds
• Performance-focused daily drivers

The DeGraaf D-Max systems use stainless-steel exhaust components designed for durability in demanding South African driving conditions.

The published 1.9 TD system uses stainless-steel front, intermediate, rear and tail-pipe components, while the 3.0 TD system is listed as a 76mm stainless-steel performance system.

Stainless-steel construction provides excellent resistance to corrosion and heat, making it well suited to vehicles used for touring, off-road driving and towing.

DeGraaf also publishes a five-year warranty on stainless-steel silencers, subject to its warranty terms and conditions.

1.9 TD System

63mm SS Front Pipe + 76mm SS Intermediate + 76mm SS Rear + 76mm SS Tail Pipe

3.0 TD System

76mm Stainless Steel Performance Exhaust System

• Designed for Isuzu D-Max turbo-diesel applications.
• 1.9 TD application: 2022-onwards.
• 3.0 TD application: 2022+ Gen 7.
• Confirm the engine size before ordering.
• South African Specification Vehicles Only.
• Do not assume the 1.9 TD and 3.0 TD systems are interchangeable.
• Confirm the exact system configuration and sound option against the vehicle before fitment.
• Professional installation is recommended.
• Existing aftermarket exhaust components must be disclosed before ordering.
• Any ECU remapping, tuning box, turbo upgrade, intercooler upgrade or other performance modification should be disclosed before installation.

ECU Remapping & Tuning

An exhaust system and ECU calibration can work together as part of a broader performance package.

However, ECU remapping should not automatically be assumed to be included or required for this product unless specifically stated on the quotation.

If the D-Max already has an ECU tune or other performance modifications, HJM Offroad should be advised before fitment so the exhaust configuration can be confirmed.

For customers looking to maximise the benefits of the exhaust system, ECU calibration can be discussed separately with a qualified tuner.

Existing Performance Modifications

Please advise HJM Offroad if the vehicle already has:

• ECU remapping
• Tuning box
• Aftermarket downpipe
• Turbo upgrade
• Intercooler upgrade
• Intake upgrade
• Existing exhaust modifications
• Other engine-performance modifications

These modifications can affect exhaust flow, sound and final vehicle performance.

HJM Offroad can supply and fit the appropriate DeGraaf exhaust system for your D-Max.

Price excludes fitment and/or courier unless specifically stated on the quotation. Prices are subject to change without prior notice.

A performance exhaust is designed to improve exhaust flow and reduce unnecessary restriction. Actual changes in power, torque, throttle response, turbo response, fuel consumption and exhaust gas temperatures will vary according to the vehicle, engine condition, ECU calibration, fuel quality, existing modifications and driving conditions.

No specific power or torque increase should be assumed without vehicle-specific testing or dyno results.

Image for illustrative purposes only. Vehicle shown is for display purposes and may not represent the exact product, vehicle specification or final fitment. Actual product appearance and fitment may vary.

Isuzu D-Max 3.0 / 1.9 TD 2022+ DeGraaf Stainless Steel Performance Exhaust System