This thread is specifically aimed towards dangerous/defective products and NOT for complaints against poor customer service.

If you have experience with any products that you feel may jeopardize the safety of own members and cars, please share it here.

An example and first on the list will be:

Magnum Stainless Steel Brake Lines
This item is know to leak without warning. If you participated in the group buy or have them installed, it is HIGHLY recommended that you remove them ASAP.

The MFR of these lines sells them on ebay and is from Canada. They refuse to return any emails about the issue, and I suggest you file legal action if you have issues with your lines.