Alright, here is the deal, I have a D15B2 with small mods nothing special. I'm working on either just getting all of the Si parts to make it into the Vtec D15 or if it's too much, then i'll say screw it and just buy one of the D15B-Vtecs that I've found used. I'm looking for any good sites that have information on the build up of what parts to take from what engines (the Si parts to swap onto mine) I've heard you can put the D16 head on the D15B2. Any help with some sites in the right direction would be appreciated, thanks. Now, on to my problem, my car has been screwing up lately and my TPS is basically gone bad. I can't find anyone what so ever that has this in stock or can even order it. I'm going to a few pick & pulls to see if they still have any on some CRX's, but I doubt it. Anyone know a site with a used or new TPS? Thanks in advance.