* 1.7L i-VTEC 4-cylinder: This was the base engine, producing 115 horsepower.
* 2.0L i-VTEC 4-cylinder: This was the more powerful engine, found in the Civic Si model, producing 197 horsepower.
To determine which engine is in a specific 2005 Civic, you'll need to check the vehicle's documentation or VIN number.