Hemi lifter failure explained?

Own a HEMI? If you’ve ever thought about modifying or upgrading your engine, there’s one upgrade you should do first, the MDS Delete. Here’s why: if you don’t do it, you risk lifter failure, a chewed out camshaft, or a seized roller bearing. Any of these can send fine metal debris through your engine, scoring bearings and causing serious (and expensive) damage. Once The MDS system is gone, It's also a lot of fun. There are no downsides other than your fuel expenses may go up. Now, you might be w