The 2015 Honda Civic Si delivers 205 horsepower. In the U.S. market, that power comes from a 2.4-liter i-VTEC engine paired exclusively with a six-speed manual transmission, producing 205 hp (SAE net) and about 174 lb-ft of torque.
Powertrain and performance
The following specs summarize the key numbers behind the Civic Si’s punch and how it translates to on-road performance.
- Engine: 2.4-liter i-VTEC K24Z7
- Horsepower: 205 hp at 6,500 rpm
- Torque: 174 lb-ft at around 4,000 rpm
- Transmission: 6-speed manual
- Drive: Front-wheel drive
- Redline: Approximately 7,000 rpm
- 0-60 mph: Typically in the low-to-mid 6-second range (around 6.3–6.7 seconds, depending on test conditions)
These figures reflect SAE net horsepower and standard equipment for the U.S.-market Civic Si in 2015. Real-world performance can vary with factors such as weight, weather, and tire condition.
Engine details and market context
All 2015 Civic Si models in the U.S. were equipped with the same 2.4-liter inline-four engine and a 6-speed manual transmission, emphasizing a high-revving character and a sporty driving experience. While horsepower is a fixed specification, drivers often notice differences in feel based on gearing, throttle response, and transmission tuning, all of which Honda calibrated to emphasize a spirited, manual-focused driving experience.
Summary
In short, the 2015 Civic SiGs delivers 205 horsepower from a 2.4-liter engine, paired with a six-speed manual transmission, and is tuned for a high-revving, performance-oriented drive. The torque figure sits around 174 lb-ft, with a redline near 7,000 rpm. For buyers, this combination defined the Si as Honda’s most performance-focused standard Civic offering that year.