i am pleased with the results! before at idle egts were at 400, now they are 300. at 75 mph, flat ground, on the highway they were at 900. now they are 700. there is lots of whistle and more of a growl with the windows down. but i cant tell the difference in the cab with the windows up.
it was a really straight forward swap, the only hitch was i have a cat and gutted it. that took an hour...... i also replaced the intake valley and upper intercooler boots with dieselsite's and now i can get 19 psi, where as before it was only 15 1/2.