Hello Jeep friends, everywhere you hear from tuning over chips, exhaust system etc. Improved combustion more performance better exhaust values and less consumption should be the positive results of these measures. What about all the talk???? The topic I put here for discussion. Certainly here are competent people who can give us lay people explicit information about this. Be very happy about it…. This is a really great platform, come again and again gladly E on it. MfG and all time good ride