How to install an STi Intercooler
If you want to build a 400 horsepower STi then at some point you will find yourself upgrading your intercooler. Adding an aftermarket intercooler to the right setup on Subaru WRX STi is one easy way to increase STi horsepower and torque and overall engine efficiency!
If you wanna save some money and feel accomplished then nothing better that a little saturday afternoon DIY intercooler installation. Peep this video below to see exactly how to upgrade your stock intercooler: