Adding gauges -Boost, EGT and Transmission temp

I have never had a diesel without gauges. But I never have a diesel without a decent tune. Even if you never go over 54 mph a good tune for an old 7.3 is a must. They run so much better. I've put a dozen ts 6 position chips in 7.3s. better mileage, huge huge power increases without really doing any damage. A few hundred bucks and a day of easy wrenching is easy insurance. Teaches you alot about your vehicle and it's condition.