Audi A4/A5 remap

The 45 TFSI badge covers the current-generation EA888 fitted across the B9 and B9.5 A4 and A5 range, producing 261 bhp from the factory. It is one of the most widely used engines in the Volkswagen Group, and that scale is exactly why the standard calibration is set conservatively. It has to run reliably on whatever fuel and in whatever climate an A4 finds itself, from a Manchester winter to a market with poorer pump fuel entirely.

Quattro is offered on the A4 and A5 but is not standard on every trim. Plenty of cars on this platform run front-wheel drive only, so we confirm drivetrain before booking rather than assuming. What we can say without a placeholder is that the mid-range gap between what the engine produces and what it is capable of holding reliably is real, and it is the same gap we close on every EA888 that comes through the workshop.

Stage 1 is a software-only remap and the starting point for most A4 and A5 owners. Stage 2 is available where supporting hardware (an upgraded intercooler and intake) is fitted; we will advise whether it is warranted for your car before recommending it. Beyond outright power, an economy remap is a genuinely popular request on this platform for owners covering higher motorway mileage who want better fuel consumption rather than more bhp. A standalone rolling road session is also available if you simply want a baseline pull or a health check without committing to a remap.