So I'm putting a b16 in my 99 civic, and I would love some ideas or set ups that you have seen. I have been reading a lot on tech with b series and OEM parts can crank a lot of power. So please do inform me what you would throw in it. Esp internals. Thanks

 

The only OEM parts to improve on in a B16 would be a 1-layer headgasket & JDM B16 pistons for a slight bump in compression, ITR cams, and ITR intake & tubular exhaust manifolds. It would be cheaper & more powerful to get an LS block & b16 pistons/rings and slap your b16 head onto it.

 

FYI D2B implies D-series engine mated with a B-series transmission.

 

I don't think the OP knows what he is talking about if he's calling that a D2B swap.