I have a set 3" truedual straights from manifold back then they turn up into a set of 6" curved stacks the stacks are approx. 2 ft above the cab. do you think I have it choked down with the 3" pipes? and if I put a turbo on it can I stll run my duals?

 

If your goning to put on a turbo then you will have to run a good 4" from your turbo to the stacks.