I have a 2006 Cummins 4x4 that I won't to upgrade. My current upgrades are a K&N cold air intake. My next investment will be a AFE 4" tubo back exhaust expecting to take delivery of it next week. Then i would like install a MADS smarty programmer. My only concern is I have had the truck for about 14 months. I bought the truck from a family member and it has 159150 on the odometer. My Question is with the mileage would it hurt the truck to do the upgrades I'm wanting to do?

 

it wont hurt it, be careful if its an auto

 

No it won't hurt it but adding the programmer and a heavy foot will hurt your tranny. Make sure the maintenance is good and have some fun.

 

The trans is the only thing to worry about it... If you beat it to much it will break!