It has nothing to do with a "lesser one". Cold side only has pressurized air going through it. Its nothing more than a coldair intake, what are those made of. The hot side will see exhaust, fuel, water, oil, 1700* temps, and not to mention exspantion and contracting of parts. The materal for the hotside will need to withstand much more abuse. You can get a coldside ebay kit made out of 3" aluminum tubing with everything you need for $120-$150 and that includes an intercooler sometimes. All I was saying is, if he were to tell people he gets the coldside from ebay they would assume it to be poor quality work. He may not even get it off ebay.
88lx Conv. 200K mile stock longblock. Trickflow intake, 42lb inj, Pmas protube,TKO500, 3:27, pypes muffs, Pa Racing tubluar K-member, DIY single turbo setup. Summit aluminum rad, Crane Hi-fire ign, subfames, 17" sc saleen's, Saleen ground effects, SCT tune by Dynosport. 380HP 435ftbs.