say Rich(rzt) has been working on Z's for a long time and has tested, pushed the limits on stock and upgraded parts just to see if the limits that the companies & people talk/claim is really true. He knows how to set up a car depending on the customer driving habits and usage etc so as far as some of the questions that has been asked, its all been taking in consideration. Rich has proven and shown me that some of these limits that are put on our z cars, parts etc are not true. I think its time for some of you to reevaluate what you have read in some of these huge post about turbos,IC's, mani's, auto trans power, ecu's etc and not just believe what someone says becuase they are popular and well liked. RZT Performance will be well missed ....... Peace out......