Well, FWIW "Dinan" the company no longer has anything to do with Steve Dinan, the original founder.
Dinan is owned by the same parent company as APR these days ("Driven Performance Brands"), and that parent company is then owned by a big "capital holdings company" (
Sentinel Capital Partners) whose main purpose is to purchase companies, lay off a bunch of people and "optimize."
They seem to exist just to "pump and dump" whatever they buy. They presumably give zero fucks about enthusiasts who buy the parts, and the ultimate corporate owner is only in it for money. I personally would avoid any brand in this portfolio out of principle.