I have a APEX type 1 for more then 4 years and more then 60k driving and its never cracked
I've had an apex type 1 ver 2 for about 3 years.
Good value, makes good power and no issues so far.
I'd always go for a known trader on here over ebay as they have always provided bood backup and after sales over the years.
2004 - on : 1999 S14a 398bhp 378lb/ft
2010 - on : 2007 RX8 PZ
1998 - 2004 : 1991 S13
im only just changing my h-dev mani after 3 years and its only because ive drilled and re-tapped it so many times due to snapped studs its now fubared!
comparing it to a cheap ebay vs apex type 1 and apex type 2 and the h-dev (yes ive had a few between 5 s-bodys) the h-dev is by far the easiest to fit!!!