W2 Performance Icons
Four cars define the factory-performance identity of this chapter: the Grand Prix GTP, Regal GS, Impala SS and Monte Carlo SS. All use the supercharged L67 3800 formula, but each expresses it with a different personality.
Pontiac Grand Prix GTP
Aggressive styling, 240 hp and the broadest performance identity of the W2 supercharged cars.
Buick Regal GS
Same core L67 punch in the era’s definitive W-body sleeper.
Chevrolet Impala SS
Supercharged sedan with firmer factory chassis tuning and a revived SS badge.
Monte Carlo SS Supercharged
The W2 coupe’s ultimate factory powertrain before the LS4 era.
240 hp. 280 lb-ft. Four distinct personalities.
The hardware overlap is a gift to enthusiasts, but the cars should not be treated as interchangeable parts catalogs. Calibration, cooling, suspension, exhaust, brakes and body packaging can differ.
| Model | Years in this chapter | Engine | Factory output | Personality |
|---|---|---|---|---|
| Grand Prix GTP | 1997–2003 | L67 3800 S/C | 240 hp / 280 lb-ft | Overt performance |
| Regal GS | 1997–2004 | L67 3800 S/C | 240 hp / 280 lb-ft | Sleeper luxury-sport |
| Impala SS | 2004–2005 | L67 3800 S/C | 240 hp / 280 lb-ft | Full-size performance sedan |
| Monte Carlo SS S/C | 2004–2005 | L67 3800 S/C | 240 hp / 280 lb-ft | NASCAR-era performance coupe |
Master Customs prioritizes factory-era documentation and period road tests, then uses established enthusiast references for service and ownership context. Equipment changed by model year and RPO; verify a specific car by VIN/RPO and factory service information before ordering parts.