The main difference between the Audi EA888 and the Volkswagen EA888 lies in their tuning and performance characteristics.

The Audi EA888 engine is typically tuned for higher horsepower outputs and more sporty driving dynamics, while the Volkswagen EA888 engine is designed for a balance of power and fuel efficiency.

Additionally, the Audi EA888 engine may feature upgrades such as larger turbochargers and improved intercoolers to enhance performance, while the Volkswagen EA888 engine may prioritize cost-effectiveness and reliability.