It will whistle loudly. The turbine & billet compressor wheel are individually balanced. LBZ Turbine Housings will need machined in order to fit the LLY 10-Blade Turbine Wheel. 66mm Front Cover Kit W/ Wheel, Turbine & Turbo Rebuild Kit for 2004.5-2007 LLY-LBZ 6.6l Duramax Turbos.
