Adding a "chip" to increase power is the easy part. It's the things that must be added
beforehand that are required for engine protection that some folks forget/bypass. More horsepower equals more heat, a diesel(heat) engine uses approximately 1/3 of that heat to produce power, the other 2/3 are dissipated through the cooling system and exhaust.
I went through the Cummins horsepower increase learning curve, before spending money the wrong way. First and most important is to increase exhaust system diameter and flow. Second is to upgrade your automatic transmission to withstand the added HP and torque. Third is to insure the cooling system is in tip-top condition.Fourth, install a good set of gauges, if you want the engine to last. Now we may begin deciding which performance enhancer best fits our desires. In 1998, when I owned a CTD, the average cost of this was $10 per HP for making improvements.
Joining the TurboDiesel Register (TDR)
TDR Roundtable - Powered by vBulletin will be a great way to do it right the first time.