Subaru Impreza Typ GD/GG (2000 – 2007) – timing belt or chain?

Petrol engines

Model Power | Displacement | Cylinder | Engine code	Camshaft drive system belt / chain
Subaru Impreza 1.5R 77 kW / 103 hp / 105 PS | 1498 cc | 4 | EJ15
Subaru Impreza 2.0 GX 92 kW / 123 hp / 125 PS | 1994 cc | 4 | EJ20	timing belt
Subaru Impreza 2.0R 118 kW / 158 hp / 160 PS | 1994 cc | 4 | EJ204	timing belt
Subaru Impreza 2.5 WRX 169 kW / 227 hp / 230 PS | 2457 cc | 4 | EJ255	timing belt
Subaru Impreza 2.0 WRX STI 195 kW / 261 hp / 265 PS | 1994 cc | 4 | EJ207	timing belt
Subaru Impreza 2.5 WRX STI 206 kW / 276 hp / 280 PS | 2457 cc | 4 | EJ257	timing belt

Related: Subaru Impreza (all Gen.) / Subaru / all car manufacturer