CSF Cooling High Performance Radiator Honda Civic FE1/FL1( 1.5T) / Si / Acura Integra DE4The Civic Si has been the darling of the compact tuner market since the 1980s. The formula of a lightweight chassis and high revving powerful engine has influenced countless tuner cars over the decades. While the latest FE1 Civic Si isnt as small or light the older models, it is still a ton of fun to drive. Out of the box, the FE1 Civic Si along with its Acura sister car, the DE4 Integra, are both very capable vehicles. Powered by Hondas 1. 5L Turbo