just fyi from what I understand you will have to make a few adjustments to use the intercooler, some spacers I believe. it is a nice piece, the only thing bad is half of it is covered up by our bumpers, so some of it is kinda of wasted space. the zzp one is pretty much the same size as the factory one just with metal endcaps instead of the plastic stock ones. Why GM used an intercooler with plastic end tanks is beyond me!!