Hp gains
 

This maybe a stupid question but here we go anyway. About what kinda of hp gains at the engine would be had with speed engineering:drive: 1 3/4 long tube headers w/ true dual exhaust w/ xpipe and a tune, a SLP air box lid, and a ssra "jaws" version ram air set up (also would be fine if given it for the non jaws set up)? Just looking for an idea of where it would be thinking somewhere around 400 CHP. Thanks for your help in advance.

Maybe around 40 hp over stock