RB concepts doesnt publish power figures, but they are very strong engines. the WS7 X3 is a great motor. and u dont need an engine larger than .21 to get the best power. the WS7, C5BB, V-spec, P5, 421B, and others easily out motor most anythign else made. dont believe any of the power claims in the ads.

good job on your choice of engine. enjoy