The Wicked Wheel 5.9 Cummins are exactly what you need if you are looking to increase the performance and overall drivability of your factory turbo. It is simple but effective upgrade that is well worth the money. This is direct replacement to the compressor wheel found in the Holset HE351CW and HE351VE turbos that came on the factory 2004.5+ Ram Cummins. So, even if you have upgraded to this factory turbo on a different application, this Wicked Wheel will be a great upgrade for additional turbo efficiency.