VW Golf GTI Mk4 1.8T or VW Golf GTI Mk5? They're two generations of the same car. Here's how far each one goes, using the makers' and tuners' own figures from our two guides.
At a glance
| VW Golf GTI Mk4 1.8T | VW Golf GTI Mk5 | |
|---|---|---|
| Years | 1998–2004 | 2004–2008 |
| Engine | 1.8T 20V turbo four (AGU, AUM, ARZ, AUQ and others) | 2.0 TFSI EA113 (AXX, BWA; BPY in the US; BYD on the Edition 30) |
| Stock power | 150 PS / 210 Nm, or 180 PS / 235 Nm | 200 PS / 280 Nm; Edition 30 and Pirelli 230 PS / 300 Nm |
Power by stage
| VW Golf GTI Mk4 1.8T | VW Golf GTI Mk5 | |
|---|---|---|
| Stock | 150–180 PS | 200–230 PS |
| Stage 1 | 187–225 hp | 235–260 hp |
| Stage 2 | 195–235 hp | 260–285 hp |
| Stage 3 | 240–280 hp | 300–355 hp |
| Stage 4 | 320–380 PS | 400–490 PS |
Figures are the tuners' own claims from each guide, on the fuel each tuner states.
Typical parts cost
| VW Golf GTI Mk4 1.8T | VW Golf GTI Mk5 | |
|---|---|---|
| Stage 1 | remaps $366.95 on sale (APR) or $500–$550 (Unitronic, at UroTuning); turbo-parts Kit 1 with diverter valve and filter €399. | remaps $366.95 on sale (APR), £418.80 (REVO, at Vagtech), €550 (BR-Performance) or £250 on sale (Superchips); DSG software $425–$549.95 or €400; plug-in box €369 on sale (RaceChip). |
| Stage 2 | Unitronic Stage 2 file $600 (UroTuning); downpipe with sports cat £575.31 (Scorpion) or $890.78 on sale (Milltek); CTS intake $169.99; cat-back £432.53–$769.44 (Scorpion, Milltek). | downpipe $399.99 (CTS, no cat) or $599.99 (IE, with cat); fuel pump $295.96–$1,348.95 (Autotech, 034, IE, APR); intercooler $849 before VAT (Wagner), $989.99 (IE) or £805.10 (Forge); intake $299.99–$439.99. |
| Stage 3 | K04 kits $1,954.78–$2,427.04 (GIAC / UroTuning) or $2,788.95 on sale (APR, with software); turbo-parts Kit 2 €1,679.99 or hybrid Kit 3 €2,500. | K04 turbos €1,109.20 before VAT (Turbo-Total), $1,499.99 (CTS) or €1,595.80 before VAT (TTE350+); APR's K04 kit with software $3,553.95 on sale; plus S3 injectors and a fuel pump. |
List prices from the guides, before shipping, import tax and fitting. "—" means that guide has no cost line for the stage.
Where each one ends up
At Stage 4 the VW Golf GTI Mk4 1.8T reaches 320–380 PS and the VW Golf GTI Mk5 400–490 PS.