I have had great success with installing a Wicked Wheel 2 right after installing an upgraded Thoroughbred Diesel VP, Airdog, and RV275 injectors, all for towing a large fifth wheel. The trans has been upgraded internals and Hughes triple disc installed. This is a must for sure. I ran the system for a couple of days, while waiting for the WW2 to show up, and let the computers learn what I had already installed. Yes, fueling definitely improved but obviously EGT's were, let's say, above average, lol. I knew I would have to take it ez til the WW2 showed up. I'm an experimental kinda guy. I installed the WW2 here in my garage. It was fun but a little stressful. It takes focus definitely. Don't drink beer with this project. It was the first turbo I performed surgery on, and yes, it's the stock Hx35. After installing the WW2, and letting everything relearn, and work in harmony together, I was positively impressed how everything worked together. HP, torque, economy, and yes economy improved. EGT's came way back down. The fun factor of driving my baby increased quite a bit. I would heavily recommend cleaning ALL your grounds, applying di-electric grease at all connections, including computers, and underhood fuse box connections. That made a HUGE difference and capitalized on all the new upgrades. Point being, keep the big picture in mind when upgrading fueling and electronics. Second, if you don't have the bucks to put in a nice, shiny new turbo, $300 or so, for a WW2 is a very viable option. So far, because of the compilation of parts, and strategy to improve performance and reliabilty, HP and definite torque increase, I have no plans to ditch the stock turbo for a new, shiny turbo I would essentially have to start over with strategically. I have no idea what my horsepower #'s are. Sure, I would like to run down to a shop and see how the numbers ended up. What I do know is that my truck is happy with the plan I executed. And you all know, when the wife is happy, life is happy. Good luck, and have fun. Now you can drink a beer or two.