The EA113 2.0 TFSI came with a small K03 turbo in the Golf GTI Mk5 and a bigger K04 in the Edition 30 and the Golf R Mk6, which is why the K04 swap is the classic Mk5 upgrade. On every one, the high-pressure fuel pump's cam follower wears and needs checking before a tune.
Power by stage, car by car
| Car | Years | Turbo | Stock | Stage 1 | Stage 2 | Stage 3 | Stage 4 |
|---|---|---|---|---|---|---|---|
| VW Golf GTI Mk5 | 2004–2008 | K03; K04 on the Edition 30 | 200–230 PS | 235–260 hp | 260–285 hp | 300–355 hp | 400–490 PS |
| VW Golf R Mk6 | 2010–2013 | K04 | 256–270 hp / PS | 295–321 hp | 311–362 hp | 370–450 hp | 400–500+ hp |
| Audi S3 8P | 2006–2012 | K04 | 265 PS | 300–315 PS | 315–380 PS | 400–435 PS | 497–525 hp |
| Audi TTS 8J | 2008–2014 | K04 | 272 PS | 299–318 PS | 311–373 PS | 392–444 hp | 403–503 PS |
| Seat Leon Cupra 1P | 2006–2012 | K04 | 240–265 PS | 300–315 PS | 315–370 PS | 400–435 PS | 420–497 PS |
Figures are the tuners' own claims from each guide, on the fuel each tuner states.
What the guides say about this engine
- Replace the cam follower with any new high-pressure fuel pump, and check it every 30,000–33,000 km on a stock car. The VW Golf GTI Mk5 guide
- VW built the Golf R's engine with a reinforced block, stronger rods and uprated pistons, but tuners still ask for forged rods past about 400 hp. The VW Golf R Mk6 guide