I don't care what elite diesel says about their attempt at an intercooler. They also sell intake manifolds , with 0 data , maybe you should try those . They tried an out of the box core , not a custom core. You honestly should try a super charger to get that 7.3 feel back . i will not send you one , not a chance , but I have some out to people with real data acquisition equipment , and I can say one thing that is proven is the stock unit has over 2 psi of pressure drop across the core , mine has less than .25 of a Lb of loss across the core. People installing these units , can FEEL a seat of the pants difference in low end drivability and noticeably less smoke output.