AG Diesel Solutions QSL5904 Performance Module, QSL 9.0L Tier IV Cummins Engines.
Designed for fuel economy with up to 30% increase in hp and fuel savings up to 10%-20%.

The QSL5904 Performance Module fits 8.9L & 9.0L Cummins Tier IV engines. This diesel performance module is designed for fuel economy with up to 30% increase in hp and fuel savings up to 10%-20%. Adjustable from your electronic device via our Ag Diesel Solutions Bluetooth Connect App. You can change your settings from stock, +15% & +30% hp. The module doesn’t flash the ECM, instead it receives the data from the ECM, optimizes the signal to the engine improving the fuel efficiency and power. These savings ensure a quick return on investment so you can enjoy greater efficiency and less cost. Plug-and-play connectivity means there’s no need to cut, splice or modify engine wiring.  All Ag Diesel Solutions modules are Made in the U.S.A.

Best of all Ag Diesel Solutions Modules includes:

30 day money back guarantee

Lifetime warranty

U.S. based customer service