You can only run 10lbs of boost on a aero 66? Any more then that and they will fall apart and not be warrantied?
We have quite a few customers running up to ~14psi on their M8's and Dragon 800's with no problems. There are many factors that go into turbo failures, cheaply built or poorly installed turbo kits are generally some of the main causes. Especially on kits that require a flange to be welded onto the stock expansion chamber. Most guys will MIG them and over time pieces of slag or wire will break away on the inside and get into the turbo. It's extremely important, on any turbo kit, to clean up that backside of that weld to ensure the life of your turbo.