Smaky

Fiting a twin intercooler system in your car would be pointless, your theory is seriously flawed and droping the temperarure of the charge air too low will only cause other problems (spark blow out, misfires, etc), mainly though it will damage the turbo, the increased volume of air at lower pressure will allow the turbo to overspeed easier, if you want to go ahead with it though, you need to think about a lot more things and have far deeper pockets than you expected.