this ECM replacement computer is/was created and caused by Chrysler with the poor design of the highly touted and advertised MDS and how much gas money the owner was going save if they opitioned up for the MDS which I did now at 92,000 miles I have this huge lifter failure on cylinder # 7 so I got me a super special remanufactured flash masters ECM .........which fixed everything BUT the MDS system controlling the lifters........no fault of flash masters there are s super great supplier.........lets blame it on the chrysler lawyers risk analysis and the executives at chrysler who refused to make the required design fix at the factory......result about 10% (est) of all 5.7 hemi's built since 2003 with the MDS system are positively going to have an engine failure around the 100 thousand mile mark. however if your Hemi is not a factory MDS your hemi probably will turn over 200 K miles.............chrysler sells a engine fix to electronically and mechanically remove the MDS but the kit, its a bunch of money and you have to remove the heads ! Thank you chrysler (just kidding) for the non kindness, and honesty you have showed your customers for all these years.................Tracy