To extract 10 additional horsepower for 2005, Acura tweaked the Type-S version’s camshafts and bolted on a freer-flowing exhaust system. These modifications bump horsepower up to 210 at 7,800 rpm (it was 200 at 7,400 rpm in 2004) and the torque rating squeaks up one lb.-ft. to 143, but the peak is now reached among the clouds at 7,000 rpm (compared to 6,000 rpm in 2004). Not only is power peaking higher than before, which requires harder driving to extract maximum performance, but also a lower final drive ratio that helps to preserve the RSX’s fuel economy rating (24 city and 31 highway) makes it harder to take advantage of the extra power.