From Civic Typr R site
K20A Specification *
Peak Power Output (kW [ PS ] /rpm) - 158 [ 215 ] /8,000 *
Peak Torque Output (N m [ kg m ] /rpm) - 202 [ 20.6 ] /7,000 *
The JDM engine has an uprated engine containing JDM springs, valves, pistons
etc plus it does indeed have a smaller cat.
Different gear ratios and mapping in the Japanese car, along with a
different intake and exhaust manifolds as well.