I've been running these in my truck for almost a year without an issue.I had just done a bunch of performance work to my truck (injectors, turbo, CP3, tune, etc) and blew a head gasket. @truckmaster07 recommended this brand and I see why. Obviously well made. Comes with sockets, an extra long Alan wrench, grease, and VERY clear installation instructions. And the packaging is an experience by itself. So much attention to detail. Not to mention the fasteners have probably the best finish I've ever seen on bolts, nuts, and washers (I'm a quality Engineer with machining background).