(0 votes, average: 0.00 out of 5)Log in to rate.Founded in 1985, PPE (Pacific Performance Engineering) made engineering innovations the prime directive in pursuit of diesel performance. Our engineers took the Duramax platform and significantly improved horsepower and torque with the Duramaximizer, at a time when there were no consumer performance options available for these new common-rail electronic diesel engines. The product was tested in the towering dunes of Glamis, California. In an era when air-, and water-cooled sand rails were