The K20A2 Oil Pump is a great upgrade for basically every K24 engine. The K24 oil pump is heavy and has balance shafts that rob horsepower. Not to mention, they aren't as efficient at maintaining pressure as you increase your redline. You can find the RSX Type S Oil Pump here: Acura RSX-S Oil Pump.
To
make the swap easier, we have put together the K20A2 Oil Pump
Installation Kit. This kit features new OEM Honda and Acura parts that
are directly compatible with the pump and make setup much easier.
Everything from the bolts, to the windage tray, to the chain, and even
Hondabond are included in the kit.