Stacked for Power, exclusive ActiveSafety and AutoRate engine/transmission safeguards, enhanced vehicle monitoring, data-logging, 6 change-on-the-fly power levels, the list goes on. No one beats Banks when it comes to safe clean power. Optimum fuel tuning for awesome power, built-in safety and adjust-on-the-fly power. Calibrated for sport, Six-Gun is a fully engineered diesel tuner with an unmatched combination of power, safety and versatility. It delivers pavement-shredding best gains of +105 hp and +258 lb-ft at the rear wheels. Has 6 change-on-the-fly power levels. Is Stacked for Power to tune timing and fuel pressure. Also has exclusive AutoRate and ActiveSafety engine and transmission safeguards. Horsepower and torque measured at rear wheels. With Banks iDash DataMonster or SuperGauge 1.8, you add enhanced monitoring, data-logging and simple control. Monitor data your vehicle's gauge won't show you, and real values that your vehicle masks. Instant real data to keep an eye on your engine, not the inaccurate filtered data that the manufacturer shows you that can sometimes lead to failure. And log that data to see how everything is running. In fact, you can log continuously until you run out of disk space (over a month straight with a 4GB card). Note: Banks Horsepower and Torque tests performed with recommended airflow improvements. Upgradeable options include Banks iDash DataMonster or SuperGauge and airflow components to build a complete engineered power system. For best Six-Gun Tuner performance, Banks always recommends airflow improvements. US Patent # 7,593,808 B2 & # 7,254,477 B1