This is step 4 of the Duramax Diesel engine swap for the H2 Hummer. Please visit echargersystem.com and hlineconversions.com and our Facebook page "Alternative Fuel Conversions" at H-Line conversions. Johnny Magic "Motorhead Messiah" will have more videos to come so stay tuned and please subscribe to this youtube channel. Please send any questions to HLINE@SBCGLOBAL.NET as we have a team ready to answer and help in any way we can. Thanks!