Audi A3 S3 RS3 8Y
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A3 8Y
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// The current generation

Audi A3 S3 RS3 8Y

The current A3 family carries the torch: EA888 evo4 in the S3 (333hp after the 2024 update) and the 400hp five-cylinder in the RS3 - now with a drift-happy torque-splitter rear axle. The MQB Evo aftermarket is maturing fast.

Downpipes & exhaustsIntercoolersIntakes & inletsCoilovers & suspensionBrakesECU & DSG tuningStyling
Chassis8Y MQB Evo
EnginesEA888 evo4 2.5 TFSI
Production2020 - present
LayoutFWD / quattro
A330 - 40 TFSI
2020-present EA888 110-190hp
Volume cars - styling, suspension and light software gains.
S3S3 8Y
2020-present EA888 evo4 310-333hp
2024 update brought 333hp and the RS3's torque splitter. Maps and MQB Evo hardware landing steadily.
RS3RS3 8Y
2021-present 2.5 TFSI 400hp
Same DNWA five as the late 8V - proven tuning carries over almost wholesale. Stage 1 ~470hp.
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// Trusted on this platform
Top brands for the 8Y
// The platform

The five-cylinder's last stand

The 8Y RS3 is almost certainly the final home of Audi's 2.5 TFSI - and it's the best version yet, pairing the proven 400hp five with a torque-splitting rear axle. Because the engine carries over from the late 8V, the tuning path arrived ready-made: Stage 1 lands around 470hp with the drivetrain untouched. The S3's evo4 EA888 is newer ground, but MQB Evo hardware from the Mk8 Golf R world fits, and the 2024 333hp update sweetened the base.

The proven upgrade path

01
Stage 1
Map only - S3 to ~380hp, RS3 to ~470hp. GPF stays in place.
02
Stage 2
GPF-aware exhaust, intercooler and intake with a matched map.
03
Chassis
Coilovers and geometry - the torque-splitter cars reward a sorted front end.
04
Beyond
The 8V's big-turbo recipes port across to the RS3 - scoped through our custom mapping.
// In-house ECU tuning
In-house ECU tuning for the EA888 evo4 & 2.5 TFSI
Stage 1-3 and custom mapping for the EA888 evo4 & 2.5 TFSI, all done in-house - the map to match the hardware above.
Explore ECU tuning →

8Y - frequently asked

Does 8V RS3 hardware fit the 8Y?

Much of the engine-side hardware does - the DNWA five-cylinder carries over. Chassis and exhaust routing changed with MQB Evo, so those parts are 8Y-specific; listings are explicit.

What about the GPF?

Post-2019 petrol Audis run a particulate filter. Our exhaust listings state whether they're GPF-back (fully compliant) or replace it - the latter is for off-road use and will trigger emissions testing failures.

Is the 333hp S3 update tunable?

Yes - the 2024 S3's evo4 responds like the Golf R's: roughly +50-60hp from Stage 1, with hardware support arriving quickly.

Do you offer ECU tuning in-house?

Yes - Stage 1-3 and custom ECU mapping are done fully in-house. We don't currently offer parts fitting, but we're happy to advise on your install.

// Browse the range

8Y parts by category

8Y Downpipes & exhausts→8Y Intercoolers→8Y Intakes & inlets→8Y Coilovers & suspension→8Y Brakes→8Y ECU & DSG tuning→8Y Styling→