
The Honda K-series engine is found in a wide range of Honda and Acura vehicles, primarily from the early 2000s through the 2010s. The most common models include the Acura RSX, Honda Civic Si (2002-2005 and 2006-2011 generations), and the Acura TSX. Other notable vehicles are the Honda Element SC, the Canadian-market Honda CSX, and the Honda Accord Euro R. The K-series is renowned for its high-revving nature, VTEC (Variable Valve Timing and Lift Electronic Control) technology, and strong aftermarket support, making it a favorite among enthusiasts.
The engine's architecture, with its rear-facing intake manifold and front-facing exhaust, contributes to excellent weight distribution and tuning potential. While most K-series engines are 2.0L or 2.4L inline-four configurations, they vary in output and features. For example, the K20A2 in the RSX Type-S is a performance-oriented variant, while the K24A in the TSX prioritizes torque for daily driving.
| Vehicle Model | Model Years | Common Engine Code(s) | Key Characteristics (Horsepower / Torque) |
|---|---|---|---|
| Acura RSX Type-S | 2002-2006 | K20A2, K20Z1 | 200 hp / 142 lb-ft; high-revving i-VTEC |
| Honda Civic Si (8th Gen) | 2006-2011 | K20Z3 | 197 hp / 139 lb-ft; sport-tuned chassis |
| Acura TSX | 2004-2008 | K24A2 | 205 hp / 164 lb-ft; balanced power/torque |
| Honda Element SC | 2007-2008 | K24A2 | 205 hp / 162 lb-ft; SUV application |
| Honda Accord (EU/JP) | 2002-2008 | K20A, K24A | Up to 220 hp (Euro R); high-performance variant |
| Honda CR-V | 2007-2011 | K24Z1 | 166-180 hp; focused on reliability and efficiency |
Beyond these factory installations, the K-series is a popular engine swap candidate. It's commonly swapped into older Honda Civics, Acura Integras, and even lightweight cars like the Honda CRX to create high-performance builds. Its compact size and immense tuning potential allow it to reliably produce well over 300 horsepower with forced induction. When looking for a car with a K-series, the 8th-generation Civic Si and the first-generation Acura TSX are often considered the most accessible and rewarding platforms for both enthusiasts and daily drivers.

If you're hunting for a tuner car, you can't go wrong with an '06-'11 Civic Si. That K20Z3 engine loves to rev, and the chassis is a blast on a twisty road. The Acura RSX Type-S is another solid pick—it's a bit lighter and has that classic Honda VTEC kick. Just be prepared to check for rust and worn-out clutches on any high-mileage example. These cars were built to be driven hard.


