2003 Chevrolet Silverado 1500 LS
- 397 RWHP
- 390 lb/ft
- 8.5 PSI
- V-3 SCi Supercharger
2003 Silverado with 85k miles on the dial when I added the Vortech V-3 SC supercharger, 55# injectors, BBK short tube headers with 1 3/4 runners, Gibson catback exhaust, 3/4 drop, Dual electric fans, 14" cross drilled and slotted Baer Brake rotors at all four corners. Running 8.5psi, 397 HP and 390 ft-lbs at the wheel.