^ OEM internals ftw
I know this thread is a little old but here are some more Ks to add:
EK coupe
K20a bone stock
RBC manifold
ASP 4-1 header
3" exhaust
home made intake
224whp / 157wtq
RSX
K20z1
toda a3 cams
toda header
RBC manifold
70mm TB
3" exhaust
235whp / 163wtq
EG
K20a2 bone stock
AEM CAI
DTR 4-2-1 header
2.5" exhaust
218whp / 156wtq
All numbers are SAE corrected