Saw this on Ebay, are they any good, where do they fit?
http://cgi.ebay.co.uk/Blow-Pop-Off-Turbo-Sound-Rover-25-45-414-416-Mini-MG_W0QQitemZ8068145656QQcategoryZ38786QQrdZ1QQcmdZViewItem
http://cgi.ebay.co.uk/Blow-Pop-Off-Turbo-Sound-Rover-25-45-414-416-Mini-MG_W0QQitemZ8068145656QQcategoryZ38786QQrdZ1QQcmdZViewItem