Japan vs Japan — 1989 vs 2004
| Legacy B4 RSK Twin Turbo | Forester STI SG9 | |
|---|---|---|
| Horsepower | 280 hp | 265 hp |
| Torque | 253 lb-ft | 279 lb-ft |
| Engine Size | 1,994 cc | 2,457 cc |
| 0-60 mph | 5.6 sec | 5.3 sec |
| Top Speed | 149 mph | 143 mph |
| ¼ Mile | 14.2 sec | 13.8 sec |
| Weight | 3,021 lbs | 3,263 lbs |
| Wheelbase | 2,650 mm | 2,525 mm |
| Length | 4,605 mm | 4,485 mm |
| Units Produced | 25,000 | — |
| Value (Excellent) | $25,000 | $40,000 |
| Collectibility | 6/10 | 7/10 |
| Rarity | 6/10 | 7/10 |
This matchup is remarkably close. The 1989 Subaru Legacy B4 RSK Twin Turbo offers higher top speed, lighter weight, better value, while the 2004 Subaru Forester STI SG9 counters with quicker acceleration, stronger collectibility. Neither holds a decisive advantage, making this a true enthusiast's dilemma. Your choice ultimately depends on which driving philosophy resonates more with you.
Within the Subaru stable, the 1989 Subaru Legacy B4 RSK Twin Turbo and 2004 Subaru Forester STI SG9 represent different approaches to performance and purpose. Both carry the Subaru badge, yet each carves out its own distinct identity. On paper, the two are remarkably close in power output, with the 1989 Subaru Legacy B4 RSK Twin Turbo producing 280 hp and the 2004 Subaru Forester STI SG9 delivering 265 hp. Under the hood, the contrast is notable: the Subaru Legacy uses a Flat-4 Twin-Turbocharged displacing 1,994 cc, while the Subaru Forester STI relies on a Flat-4 DOHC 16-valve turbo (EJ255) with 2,457 cc. In the sprint to 60 mph, the 2004 Subaru Forester STI SG9 edges ahead at 5.3 seconds versus 5.6 seconds. The Subaru Legacy carries a weight advantage, tipping the scales 242 lbs lighter. On the collector market, the 2004 Subaru Forester STI SG9 commands a significant premium over the 1989 Subaru Legacy B4 RSK Twin Turbo, reflecting differences in prestige and rarity.