Diablosport Predator • Adds 20-30HP in gasoline powered trucks and SUVs • Exclusive! 300% larger backlit screen • Exclusive! Fastest re-tuning times on market • Exclusive! Predator Performance Tunes Re-Map: • Fuel curves (user adjustable +/-5%) • Timing curves (user adjustable +/- 10%) • Extend speed limiters • Extend rev limiters (not on all models) • Part and full throttle shift points (except manual trans.& 8.1L trucks/SUVs w/Allison transmissions) • Shift timing (except manual trans. & 8.1L trucks/SUVs w/Allison transmissions) • Shift pressure except manual trans. & 8.1L trucks/SUVs w/Allison transmissions) • Speedometer (user calibration for gear and tire size changes) • Exclusive! Custom tunes & updates through Internet • Exclusive! Re-tune vehicles after factory re-flash of PCM • Exclusive! Multi-vehicle DTC scanning & erasing work plus live data monitoring • No computer skills required, installs easily • Performance tunes require super unleaded/premium grade fuel only (Amoco or Mobil if possible) • Limited lifetime warranty - Read our Predator Liability Waiver FITS: 2003 Chevrolet Silverado, Tahoe 4.8L, 5.3L, 6L, 8.1L 2003 Chevrolet Suburban, Avalanche 4.8L, 5.3L, 6L, 8.1L 2003 GMC Sierra, Denali, Yukon 4.8L, 5.3L, 6L, 8.1L 2003 Cadillac Escalade, EXT and ESV 2003 Hummer H2