2025 Civic Si Hp. The engine powering the 2025 honda civic si was a turbocharged inline 4 (1500 cc | 91.5 cu in. The new civic si takes the refreshed 2025 civic and turns it up a notch, focusing on mods that make it a bit faster and more fun to drive than the base and hybrid variants.

Research the 2025 honda civic si with our expert reviews and ratings. Based on 2025 epa mileage ratings.