The Audi S5 4.2FSI is probably one of the least interesting cars for tuning: because it is the only one of its breed to come with a naturally aspirated engine.
Soon after this car’s release, Audi must have realised it is going nowhere with this engine. Hence, the updated versions started going out with the almighty 3.0TFSI instead.
Or perhaps it is interesting: There are some very important advantages to having a big naturally aspirated and directly injected (code BAR) engine. For those with an open mind and pocket, there are fantastic things to do with this engine once you commit to tuning it.
Ranging from just a remap (which is what this article is about) to supercharger and turbo kits, the sky is the limit, all on stock internals!
Performance results
Quoted by the manufacturer as having 260kw @ the engine. On our dyno it was measured stock at 183wkW, on all 4 wheels.
A Stage1 Etuners file was calibrated, which increased power to 204kw at the wheels, gainins 20.5wkW in total.
- Maximum power at the wheels: 204.5 kW (measured stock as 183.9kW), gains 20.6 wkW
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