Looking for a stainless pedestal for a t-4 foot. It will be on an s400 charger, so what size will I need? 7"? I'm looking at stainless cast ones from HTT it Turbonetics but can't find much info. Just looking to get one pretty cheap and didn't know if I needed a spacer because they don't say how tall they are, I know the HTT one is 5" IIRC. Thanks!