Koyo 06-11 Honda Civic Si 2.0L Coupe/Sedan (MT) Radiator

Koyo is well-known for making solid cooling components, and this radiator is a great example of that. If you're driving a 2006-2011 Honda Civic Si, this is a direct replacement for your stock radiator, designed to keep your engine running cooler, especially when you're pushing it a bit harder.

This radiator is built with a dual core design, meaning it has two rows of tubes running through it. This increases the surface area that air can flow over, which helps dissipate heat more effectively than a single-row design. The tanks are made from durable aluminum, and the core is constructed from rows of tubes and fins that are carefully brazed together for a strong, leak-free connection. It's a well-built unit that's made to handle the demands of keeping your Si's 2.0L engine at a stable temperature.

This radiator is a manual transmission (MT) specific fitment, so make sure that matches your Civic Si. It's designed to fit right into your existing mounting points, making installation straightforward for someone familiar with cooling system work.