SDE (Soderstrom Design & Engineering) torque converters brings over 70 years of combined automotive experience to the race converter industry. Phil Soderstrom has been involved in the Australian performance industry for over 56 years in a variety of successful performance automotive businesses. He designed and built his first Australian Drag Racing National Record holding 8” torque converter in 1977. Peter Kollitiris has been involved in the automotive performance industry for over 26 years and has a passion for perfection in the racing converter industry. All SDE converters are custom designed and engineered individually, to suit each engine, transmission and vehicle combination.