The Banks Six Gun Tuner (Part No. 63717) is a top - notch diesel performance enhancer designed for 2004 - 2005 GM vehicles with LLY, Duramax 6.6L engines. Remember, 2004 had a split between LB7 and LLY engines, so check the 8th digit of your VIN (1 for LB7, 2 for LLY). Banks Power is a leader in diesel performance. With solid testing and data, we're proud to offer this tuner. It provides optimum fuel tuning for great power, built - in safety, and adjustable power on the fly. Unlike many tuners, it won't harm your vehicle. Banks has found the limits of the engine and powertrain and added ActiveSafety safeguards. Every Banks Tuner comes with exclusive AutoRate® and ActiveSafety® engine and transmission safeguards to protect your drivetrain. This tuner is a real performance booster. Stacked for Power® and calibrated for sport, it adds +102 hp/+275 lb - ft at the rear wheels. With CleanTune® Technology, it gets you from 0 - 60 mph 21% quicker and 148 feet ahead of stock without adding soot. Features include gaining up to +102 hp/+275 lb - ft at rear wheels, ActiveSafety protection, 6 change - on - the - fly power levels, 29% less distance to reach 0 - 60 mph, enhanced vehicle monitoring, logging up to 100 parameters, reading and clearing codes, and easy installation. For best performance, airflow improvements are recommended, and all gains are measured at the rear wheels with such improvements.

Using the Banks Six Gun Tuner is a breeze. First, make sure your vehicle is a 2004 - 2005 GM with an LLY, Duramax 6.6L engine. Check the 8th digit of your VIN to confirm the engine type in case you have a 2004 model. You can easily adjust the power levels on the fly, with 6 different settings to suit your driving needs. When installing, just follow the provided guides by clicking on the links. The tuner comes with safeguards to protect your engine and powertrain, so you don't have to worry about over - stressing your vehicle. To keep it performing at its best, we recommend making airflow improvements. Also, keep an eye on the vehicle monitoring feature and log important parameters. If you get any codes, the tuner allows you to read and clear them. That way, you can ensure your truck runs strong and your drivetrain stays protected.