Well I just bought what was advertised as a stage1 modified APC for my 87T.I got it on ebay for $75. It appears to be unused as it was the wrong model for the owners car. Guess I'll find out soon enough but there was no way I could pass up that price!With that and the Abbott manual boost control I've got coming (slightly used - $25) I think that was a hundred bucks well spent. S'pose I'll definitely need to add a boost gauge now. I'll let everyone know how it all turns out and I'm sure I'll be playing "Ask The Experts" right here.