The owner brought us his tidy RS3 to get more out of the existing hardware upgrade. He purchased the RS3 already loaded with upgraded intercooler and downpipe through a used car dealer interstate but was unaware that it already had an unknown flash tune. This car is a MY2016 model, pre-facelift, with a 2.5 TFSI CZGB engine.

 

When we did a base run, it measured 238kw at the wheels which suggest it had some sort of stage 1 remap. What caught our attention with the unknown tune was the air fuel mixture going very very lean up top.

Arrow pointing green line showing unknown tune’s lean air-fuel mixture.

 

Upgrade specifications

After loading our custom stage 2 file, peak power went from 239kw at the wheels to 271.5kw or a 33.5kw increase. Gains were also made throughout the rpm range and as much as 47kw increase in the mid range over the unknown tune. Air fuel mixture is much safer up top in the RPM range compared to the previous unknown tune.

To compliment the custom stage 2 tune, we loaded our tried and tested DQ500 DSG7 tune. Stephen reported to us that his RS3 is a completely different car(beast!).

Performance results

  • Maximum power at the wheels: 271.5 kW
  • Maximum torque at the wheels: 520 Nm

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