I had a cummins in 94 got another in 02, bought a 2500 4x4 cummins 3 days ago with 6 spd. I left the other 2 stock and dont understand all the gauges and add ons i've seen in the forums. I tow small dozers and such. What would be the safest way to add about 100 hp? Thanks

 

you'll be safer with about 50 hp when you tow anything higher seems to break things or at least most of the time when i do it. i run an extra 50hp and everything seems to hold together and it still tows good