I'm looking to do some upgrades intake exhaust with tuner. Also a led light bar. I've had a hard time finding the exhaust the only brand I can find is rjweld and there are only a handful of dealers in the USA. What exhausts are you running and what tuners? I've also heard that they run lean from the factory is this true. Last note what light bars are you running. I have 550 miles on mine is there any reliablaty upgrades I can do also thanks.