I see posts all the time of people asking "What do you think of [X product] by [X company] or [Y company]?". Generally they can be answered by some searching and reading, but many people are too impatient to bother.

My suggestion would be to add a dedicated product review section, either just one big forum or broken up by category [e.g. Exhaust, Intake, Drivetrain, whatever].

Posting format would be one thread per product per brand, like this: "Berk metallic HFCs"

All posts in each thread would have to be by owners/former owners of said product, and their review of it. Possibly allowing people with specific questions about the product to post questions also.

I'm sure there are a ton of older threads spread around various forums that could be relocated to this new section immediately. The idea being to centralize this info and cut down on the number of new threads popping up, provide quick access to it rather than having to do a bunch of searching and skimming various threads, etc. Just a thought.