i belonged to a similar sight like this but for toyota celicas, and we had a parts review section, which i see you do also, but we had like constant "threads" for different categories (a section for bolt ons, audio, appearance, etc like we do for tips) but then inside each one we had a review section for specific parts which were always posted, and you could go in and give a rating out of like 5 stars and leave a comment if you owned it, say what price you paid, etc. i thought it was pretty cool, and it helped save a lot of "what is the best exhaust?/header/intake,etc" questions. i dont know if i'm being real clear with what i'm trying to say, but hopefully you atleast understand what i'm trying to get at through this garbelled mess! just a suggestion!