In the U.S. market, most 2007 Civics deliver 140 horsepower, while the performance-oriented Civic Si bumps that to 197 horsepower. The exact figure depends on trim and engine choice.
Overview by trim and engine
The 2007 Honda Civic lineup in North America used two different engines. The base models (DX, LX, EX) used a 1.8-liter four-cylinder with 140 horsepower. The high-performance Si used a 2.0-liter four-cylinder delivering 197 horsepower. Market variations exist; non-U.S. markets may have different specs. Horsepower figures are catalog values and can vary slightly with testing method, drivetrain, and emission equipment.
The following list summarizes the horsepower for the major trims available in the United States.
- 2007 Honda Civic DX/LX/EX: 140 horsepower
- 2007 Honda Civic Si: 197 horsepower
In practice, power output affects acceleration and performance in different driving scenarios. The Si is designed for spirited driving and higher rpm power, while the base models emphasize efficiency and everyday usability.
Engine specifics (for reference)
1.8-liter engine (R18A1) in DX/LX/EX
The 1.8L engine is rated at 140 horsepower and around 128 lb-ft of torque, with output depending slightly on transmission and emission controls. This engine is used across DX, LX, and EX trims.
2.0-liter engine (K20Z3) in Civic Si
The 2.0L engine in the Si produces roughly 197 horsepower, with higher-rev characteristics designed for performance-minded drivers. Torque is around 139 lb-ft, with power delivered predominantly at higher engine speeds.
What 'horsepower' means for a 2007 Civic
Horsepower is a measure of engine power, not braking or handling. In 2007 Civics, the 140 hp baseline is adequate for daily commuting, while the 197 hp Si offers faster acceleration and sportier performance. Real-world results depend on transmission, gearing, weight, and tire condition.
Summary
The 2007 Honda Civic came in multiple trims with two engine choices. Most models: 140 hp. Si: 197 hp. When evaluating a used 2007 Civic, confirm the exact trim and engine for horsepower accuracy, as well as any aftermarket modifications that could alter power output.