Turbocharger Kit for Gen 1 B58

The Big Boost B58BB1200 is a turbocharger kit designed for Gen 1 B58 engines. This kit features a BigBoost MPR 69mm turbocharger and a cast twin-scroll manifold that is 40% larger than stock, including an external wastegate port.

The kit includes a Turbosmart 38mm wastegate, aviation-grade stainless steel oil feed lines, and various fittings for oil and coolant. It also comes with a turbo-to-throttle body charge pipe, a 4-inch aluminum inlet pipe, silicone couplers, hose clamps, and an engraved heat shield. Installation requires custom tuning via MHD or BM3, and the factory Electronic Wastegate must be disabled. A boost controller, such as the GFB GFORCE III, is recommended.