City Diesel- why be half as fast? We offer a full range of services and installs for the Cummins turbo diesel, Ford Power Stroke, and Chevy Duramax. We can offer complete packages from mild upgrades to extreme horsepower. We stock all the accessories needed to complement your performance upgrades including gauges, air intake systems, exhaust systems, exhaust brakes and clutch upgrades. From oil changes to engine overhauls and every power modification in between, we can do it all.. Engines