720AWHP 2.6L Stroked STi Covered in Cosworth Goodies!

Posted by Reid on April 18, 2012
Posted in: Shop News.

Most of you have been following our epic build of Steve’s Subaru STi equipped with an extremely potent list of high end performance orientated parts. As most of you are aware of, the STi is not the most popular platform to build a potential 10 second street monster out of. This was not going to stop Steve from turning his Subaru into the type of beast that would humiliate most Ferrari and Lamborghini owners in the rare occasion that they decided to pick on this four door sedan. Steve has been working with us for many years and his STi has gone through many different phases which has culminated into what the car is today. We are honored that he has chosen Forged Performance as his go to guys when it comes to taking his STi to this level, knowing that we always stand behind our workmanship. I personally drove this car on the 93 Octane low boost setting for some break in miles a few months ago making right under 500awhp on our Dyno Dynamics Dynometer and I can attest to the fact that this is far from your everyday STi you see on your morning commute. After we were certain the car was rock solid and the driveabilty was as close as you could get to stock(at least for a car of this magnitude) we returned it to its owner a couple months back filled with E-85, on high boost and making a face-warping 636awhp. Steve has since been enjoying the car and has put over 1,000 miles on the odometer, even driving the car to work on occasion. We knew this wasn’t the end of the road of this STi though. While the car was here previously we had installed a ZEX Direct Port Nitrous System to give Steve’s STi even another jolt in the power department! I could be wrong (it happens…occasionally hehe) but as far as we know of, this is the highest horsepower true full interior street car STI in the United States. You can see this STi out at local meets and shows around the Atlanta area, but for now make sure to check out the basic mod list and photos below:

• 2.6L Forged Performance Race-Spec Stroker Shortblock
• Cosworth Cylinder Heads
• Cosworth Intake Manifold
• AMS 850R Turbo Kit
• GSC S2 Camshafts
• Perrin FMIC Kit
• ID 2000cc Fuel Injectors
• Forged Performance Custom Spec Fuel System
• AEM EMS tune by Sharif@Forged with NOS Control
• E85 and 93 Octane Maps

E85 + high boost + nitrous dyno video: