> Wow, thats new news to me. > > Anybody else have bad experiences with the stock > sodium filled exhaust MC valves ?? I've never seen an I5 valve failure that wasn't caused either by physical damage (foreign body, VPI) or grossly bad fueling. -- Phil Payne http://www.isham-research.com/quattro +44 7785 302 803 +49 173 6242039