Diesel Power Source, started in 2003 has the #1 rated Compound Turbo Kits in the USA. It's founder and head design engineer holds several patents related to automotive, medical, drilling, VGT turbos, turbine engines and fluid dynamics. DPS made twin turbo kits, commonplace in the industry. With our CFD capabilities and several engineers we have the best flowing turbos, compounds and manifolds available. We are the manufacturer of the Turbonator® VGT turbocharger.