Upgrade or replace your powertrain with a genuine Honda K20Z3 2.0L DOHC i-VTEC engine. Originally found in the 2006–2011 Honda Civic Si, the K20Z3 is known for its high-revving performance, reliability, and excellent aftermarket support. Factory-rated at approximately 197 horsepower with an 8,000+ RPM redline, it’s a popular choice for OE