thanks for the info

I just ordered a Mac catback and air intake. I will dyno the truck tonight stock (60 miles)and post the results. I will do the same once i install the exhaust and the cold air. I did Mac since we are a dealer and we most likely get into modding the truck since we have one to play with.

any other suggestions would be appreciated

we will probally buy the truck software to tune with as well

Larry