im sure that there are some of sho owners out there with a EGR that clicks from about 2000 to 4000 rpms, well if you have that problem its more than likely that the EGR pipe that connect from the intake to the exhaust is broken. this is a dealer part (the piping) so the whole part has to be replaced, what i did to fix the problem temporarly is took the EGR to a muffler shop and had them weld it back together....its better now and better then paying what the dealer charges.. anyone out there with this problem?