Yep, h23a1 going into the 5th gen. Going Turbo non-Vtec. As far as the wiring goes I posted something asking about that too. I haven't really got a clear anwser on the wiring yet, I plan on going with a p74/p75 ECU, i read that it works great when turboing an h23, of course I'll be running a standalone too. So am I good to use a base model 5th gen knuckle. My biggest confusion I guess comes down to the Axels. I'm going to have to use ones that work for an h23 but will those same axels fit up to the SH knuckle or will I have to get a base model knuckle or convert to the 4 lug. I am aware that this might not have been the best swap but trust me when I say I'm in too deep now and invested too much to stop now