NEW: Performance Module for 12.7 & 14.0 L Detroit DDEC III & IV - 1995-2004 | Universal Performance Module for 12.7 & 14.0 L Detroit DDEC III & IV - 1995-2004 - Controls Timing, Fuel and Boost* - Fuel Savings of 10% to 20% - Up to 30% HP Increase - Adjustable on the Fly - Unplug and Plug-in, No Cutting or Splicing of Wires - Product Does Not Defeat Emissions Controls - Safe Engine Temperatures - Satisfaction Guaranteed Quality Design & Smart Engineering The truck edition Heavy-Duty (T.E. HD) module controls timing, fuel, boost and other vital engine parameters to optimize the combustion of the engine. This not only increases the power of the engine by up to 30%, but reduces fuel consumption by 10% to 20%. Unlike other modules that only add fuel, T.E. HD adds timing to keep EGTs close to stock levels even with the added power. T.E. HD modules do not flash your ECM, instead the module receives the signals from the ECM and then optimizes the signals going to the engine to improve performance and efficiency. T.E. HD is constantly monitoring the engine more than 100 times per second to ensure that the engine is running at optimal performance. And the loaded-based tuning allows for timing and fuel to be added progressively, as needed. The module is adjustable on the fly with a four position switch for stock, fuel economy (10%), Fuel Economy plus Power (20%) and power (30%). Performance Module for 12.7 & 14.0 L Detroit DDEC III & IV - 1995-2004 | Universal.