I appreciate all of these suggestions. All of my experience on diesels is mainly focused around Cummins engines. I have a lot to learn about this Mercedes engine. If I were to install an exhaust temp and boost pressure gauges what would be the ideal readings to safely shoot for? When I run a Cummins engine such as the dual overhead cam ISX hard on the dyno I read about 950* exhaust temp and 30 psi boost at full load. What does a stock 300d run for boost, and how much can I increase it? Can I just adjust the wastegate to obtain a higher boost pressure? Also, has anyone ever heard about anyone installing a charge air cooler on this engine? My final question as crazy as it may sound to some of you is, I would also seriously consider installing propane injection onto this engine if someone were to direct me in the right direction of doing it. I have seen it done on the Cummins B5.9 in the Dodges. I think people would get a kick when they see a little sleeper diesel Mercedes open it up and smoke their little civic.