I need some help and direction with my 06 2500 HD 6.0. I have a crew cab 4x4 and I would like some xtra HP and fuel economy. Some people say a chip and cold air intake is a barely noticable. Should I go with exhaust and other mods?

thanks
HDH

I think you posted in the wrong section.

I would definitely go Exhaust, then chip/programmer, then air intake and see how it runs then.

Never run a chip/programmer w/o an exhaust because your EGTS will get way too high and you WILL tear something major up.

Most likely find out more info in the Performance Truck forum. http://www.performancetrucks.net/forums/