A Stage 1 remap takes the 400hp Audi RS3 8V to around 470bhp and 620Nm on our rolling road, and the earlier 367hp car to about 420bhp and 620Nm. The later GPF-equipped 8V and the 8Y reach the same 470bhp with the filter left in place. The 2.5 litre five-cylinder is one of the most rewarding engines we tune, and the torque figure of 620Nm is what turns it from quick into properly rapid.
Questions we get asked
How much power does an RS3 8V gain?
The 400hp car goes to around 470bhp and 620Nm. The earlier 367hp version reaches about 420bhp and 620Nm, so it gains more torque in proportion. The 8P at 340hp goes to around 400bhp and 600Nm.
Does the GPF change the figures?
No. The 2019-on 8V and the 8Y have a petrol particulate filter and they reach the same 470bhp with it in place. It stays: removing it makes the car illegal on the road and fails the MOT.
Should I tune the gearbox as well?
Worth it here. The DQ500 has its own torque limiter and 620Nm is enough to run into it. The gearbox tune raises the limiter, speeds up the shifts and gives a manual mode that holds a gear.
What does Stage 2 need?
A downpipe with a sports cat and an intake, then a file written around them. The five-cylinder responds well to breathing better, so it is one of the cars where Stage 2 genuinely earns its money.
Is the 2.5 TFSI strong enough?
It is a robust engine and Stage 1 is well within it. As always what matters more is condition: we check the servicing history, the plugs and the cooling system before writing anything.
How long does it take?
About two hours through the diagnostic port including a road test, or the same day if the ECU needs a bench read, which we do here. We keep your original file so it can go back to standard whenever you want.
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