2004.5-2005 LLY DURAMAX - HPTUNERS CUSTOM TUNING
Complete custom calibrations developed specifically for the 04.5-05 LLY Duramax Trucks.
All torque and speed limits removed.
Pilot/Post injections removed.
Exhaust brake power increased and enabled to lower speeds.
Considerable fuel mileage gains over the stock calibrations.
Improved pedal sensitivity and adjustable per SOTF level.
Torque converter lockup enabled in 2nd while using Tow/Haul mode.
Full Manual control over shifts in driver select mode.
Increased shift points to prevent lugging.
Much firmer and faster shifts.
TCM Calibrations optimized for stock and aftermarket transmissions.
All unnecessary derates and shutdowns removed.
Truck will never limit your speed or power for any reason.
SOTF Tune set includes:
1. STOCK +0HP
2. ECO TOW +30HP
3. HEAVY TOW +60HP
4. STREET +120HP
5. RACE +200HP