2005 – 2009 Cobalt 2.4L LE5 Stage 1 Performance Tune (File Only)

Benefits of Cobalt 2.4L LE5 Stage 1 Tune

  1. Cooling Fans set to 205F
  2. Fan speed increase for more rapid cooling.
  3. Speed Limiter Removed
  4. Mass Air Flow sensor calibrated for most cold air intakes on the market.
  5. Power Enrichment delay removed to allow for more immediate Full-Throttle response
  6. Air Fuel Ratio adjusted for better performance.
  7. Timing Calibrated for Premium Grade Fuel. (91+ octane).
  8. Low end torque and fuel economy improved by adjusted timing
  9. Spike at ~4,000rpms less severe due to a more linear power curve
  10. Top end timing advanced 2-3 degrees for better peak horsepower
  11. RPM Limiter increased in manuals to allow for more aggressive full throttle shifts
  12. Torque Management (granny controls) removed to prevent computers from reducing torque output below 3,000 RPMs
  13. Typical gains: 8-12HP and 12-18lbs of TQ at the wheels.
  14. *NEW* Automatic Transmission equipped cars now have Full Throttle Shift points raised to 6,750 RPM.
  15. *NEW* Automatic Transmission shift time reduced by 0.25 seconds per gear change.



We have taken our tried and true LE5 Stage 1 Performance Tune that we have been using for more than 11 years and have finally made the HPTuners file available for purchase separately. This option if for the Do It Yourselfer who already either owns a HPTuners cable, or has access to one from a friend.

Simply provide us with your stock file and HPTuners Interface ID# and we will send you back your Stage 1 Performance Tune file to upload ASAP.