Cummins 6.7L Silver Bullet PhatShaft Turbo (2007.5-2016)

The Silver Series PhatShaft is our latest effort to achieve perfection. Much like the Super PhatShaft, it was designed to handle multiple fueling upgrades and comes in three sizes. 62mm 64mm, and 66mm, and now 69mm. What separates the Silver Series PhatShaft from the Super PhatShaft is our new technology 74mm turbine wheel. To improve on the Super PhatShaft turbos, we needed to improve performance at a lower rpm range, and we needed to reduce compressor surge. The solution is the 74mm turbine, which is the latest in turbine trim design technology. The new trim design transfers exhaust gas energy more efficiently than any other turbine on the market. It also allows for better exhaust gas expulsion, which results in lower EGTs and quicker rotor acceleration. The most important benefit of the 74 mm turbine wheel is that it eliminates turbo surge and broadens the power range. All silver series turbos come with a 360-degree thrust bearing and an appealing polished compressor housing. The Silver series utilizes the proven 14cm exhaust housing with a modified exhaust nozzle, and we maximize the wastegate ports in the 14cm housing by enlarging the diameter. The turbine housing wastegate covers its custom build to allow full wastegate travel. Like all PhatShaft turbochargers, they are equipped with dual grooved high-performance bearings and an adjustable boost elbow.