Garrett Turbo Kit , GTP38R

Performance Kit - Ford Power Stroke (1999.5 - 2003) Garrett Turbo Kit Horsepower 590 HP* * Estimated. Performance results of this product are highly dependent upon your vehicle's modifications and tuning/calibration. The horsepower numbers represented above are calculated based strictly on choke flow of the compressor map (total turbo capability), which represents the potential flywheel horsepower.