Hiya, have tried searching the forum but all i'm getting is what fuel we're putting in and what mileage we're getting.. so thought I create a topic to suit what i wanted to know. these things -> http://cgi.ebay.com.au/ws/eBayISAPI.dll?Vi...em=230187855553 Has anyone used them? on what? Recommend them? Thoughts? MODS, please move the topic if it is not in the correct area. Ta!