Model
Audi S4
Variant
4.2 V8 253 KW
Years
2005-2007
Fuel
Petrol
Engine Size
4163
ECU Type
Bosch ME7.1.1
Celtic Tuning's economy software is designed to improve fuel efficiency during normal daily driving, specifically under part-throttle conditions.
It delivers a smoother power curve and improved fuel economy, though actual savings and performance gains will depend on factors such as driving style, road conditions, and vehicle load.
| Original | Modified | Difference | |
|---|---|---|---|
253KW | 279KW | +26KW | |
409Nm | 457Nm | +48Nm |
This Stage 1 ECU remap, developed by Celtic Tuning, is designed to safely improve your vehicle's power and torque whilst maintaining standard components and remaining within tolerances.
It's the perfect balance of increased power and day-to-day usability, which is ideal for those who want extra performance but not at the cost of additional hardware or reliability.