Diesel engines are designed to deliver strong torque, excellent fuel economy and reliable performance. However, over time, carbon deposits can build up throughout the intake and EGR system, particularly on modern diesel engines such as the Mazda CX-5 Skyactiv-D. At Revhigh Tuning Solutions, we recently completed a comprehensive carbon cleaning service on a Mazda CX-5 Diesel Skyactiv-D, including the intake manifold, EGR system, intake valves and exhaust valves. What Causes Ca

The Mercedes-Benz GLE 250d is already known for its impressive torque and everyday drivability. However, like many modern diesel vehicles, its factory ECU calibration is deliberately conservative to meet emissions and reliability targets—leaving plenty of performance untapped. With a Stage 1 ECU Tune, you can unlock smoother power delivery, stronger acceleration, and improved throttle response without compromising everyday reliability. Dyno-Proven Performance Gains The number

Modern diesel engines — especially Euro diesel vehicles like BMW, Audi, Volkswagen and Mercedes-Benz — commonly suffer from carbon accumulation due to: EGR (Exhaust Gas Recirculation) systems Oil vapour from the PCV system Soot recirculation Short-trip driving conditions Over time, thick carbon deposits restrict airflow inside the intake manifold and intake ports. This can lead to: Rough idle Reduced power Sluggish throttle response Poor fuel economy Increased smoke Engine he

When it comes to diesel performance upgrades, the 2.8L Holden Colorado is one of the most responsive platforms for tuning. This 2017 RG model came into the workshop needing a proper calibration across engine and transmission, and left with a noticeable transformation in power delivery, torque response, and overall drivability. This wasn’t just a “numbers tune” — it was a full setup including ECU tuning, TCU (transmission) tuning, and exhaust valve correction to ensure the eng

This 2017 Mazda CX-7 Diesel came to us for our tuning special . The vehicle had previously been tuned elsewhere, but after a full inspection and initial assessment, we quickly identified several issues within the existing calibration. As we always say — not all tunes are created equal. The Problem While the vehicle had already been modified and tuned, the previous setup showed: Inconsistent torque delivery Suboptimal fuel and boost calibration Areas where the engine wasn’t op

If you own a BMW 535D and are looking to take its performance and efficiency to the next level, upgrading the EGR, DPF, and software can be a game-changer. These upgrades offer a range of benefits, from increased power and improved throttle response to reduced emissions and enhanced fuel efficiency. Let's explore why these upgrades are worth considering for your BMW 535D. 1. EGR Upgrade: The EGR (Exhaust Gas Recirculation) system is responsible for recirculating a portion of

When Dave reached out to us, he was referred by his trusted mechanic for a much-needed overhaul of his 2016 BMW 520D M-Sport. Recognizing the importance of maintaining peak performance, Dave entrusted us with the task of performing a Walnut blast, Carbon clean, and a custom DYNO tune on his beloved vehicle. Our team got to work, ensuring every aspect of Dave's BMW received the attention it deserved. Alongside the Walnut blast and Carbon clean, we fine-tuned the engine with a

In our latest project, we delved into the Audi SQ5 3.0L BITDI, embarking on a meticulous three-stage carbon cleaning process to rejuvenate its diesel engine. Stage 1: Chemical Cleaning We began with a thorough chemical cleaning process, targeting stubborn carbon deposits and buildup within the engine's components. Stage 2: Hand Cleaning Next, our expert technicians meticulously performed hand cleaning, ensuring every nook and cranny of the engine was free from carbon residue,