Agricultural Diesel Solutions

Anyone familiar with their performance modules? They are manufactured by Power Systems Innovations. Looking at the Cat3304 module for the 3.3L interim tier IV engine in my Cat 289D. Not sure if the power gains are from rail pressure increase or altering the duration of the injectors. Can’t find hardly any discussion on the internet about their products. $1900 is a lot of coin to shell out with out knowing the quality or how it achieves the claimed 30% gain in hp


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