The 2010 Honda Civic Si has 197 horsepower from its 2.0-liter engine.
This article explains where that horsepower comes from and how it fits into the 2010 Civic lineup, with engine details and context for performance-minded buyers.
Engine and horsepower specifics
The Si uses Honda's 2.0-liter i-VTEC four-cylinder, code-named K20Z3, tuned for higher output. Peak power is achieved at high rpm, contributing to the Si's sporty character.
Key specifications for the 2010 Civic Si powertrain include:
- Engine: 2.0-liter i-VTEC inline-4 (K20Z3)
- Horsepower: 197 hp (7,000 rpm)
- Torque: 139 lb-ft (6,500 rpm)
- Transmission: 6-speed manual
- Drive layout: Front-wheel drive
These figures reflect the U.S. market specification for the 2010 model year and are consistent with Honda's official data and automotive reviews from that period.
Context within the 2010 Civic lineup
Within the 2010 Honda Civic lineup, the Si stands as the performance-oriented variant. It delivers substantially more horsepower than the standard LX/EX trims, which are powered by a 2.0-liter engine producing around 140 hp, making the Si the most powerful option in that year's lineup.
- Si: 197 hp
- Other trims (LX/EX): ~140 hp
In summary, the 2010 Civic Si’s 197-horsepower rating reflects its role as the performance option in the eighth-generation Civic for that year.
Summary
The 2010 Honda Civic Si delivers 197 horsepower from a 2.0-liter i-VTEC engine (K20Z3), paired with a 6-speed manual transmission and front-wheel drive. This places it above the standard Civic trims in power and aligns with the Si’s performance-oriented reputation for that model year.


