Our Stage 3 Power Package takes your STI beyond the limits of your factory turbo.   Replacing the smallish VF39 turbo we employ the services of the Helix RR500 turbocharger.  This turbocharger is capable of producing 500HP yet manages to retain an excellent spool-up and response time -  a perfect turbocharger for the daily driven STI.   And as a direct drop-in turbocharger very little modification is needed for its operation, thus retaining our "bang for the buck" philosophy.

On the fuel side of the equation, the small stock injectors are replaced with Helix 860cc injectors.  These injectors are good for up to 600HP and do not suffer the problems with cold start and idle seen by other aftermarket injectors. 

Because the Helix RR500 turbocharger pushes so much air the stock intercooler is easily over powered.  For optimal performance we opted to use the large Perrin Front Mount Intercooler.  The Perrin intercooler supplies more than enough cooling potential to handle the Helix RR500 turbo.

Finally ECU parameters are completely re-calibrated to accommodate the modifications via a remap of the Cobb Accessport.  Horsepower gains of over 110 horsepower over stock are achieved with our Stage 3 Power Package on 91 octane pump gas. 

However, that is not the end of the story.  Our Power Package 3 has WAY more potential.  With the addition of high octane gas an additional 30-40whp is available with 100 octane and even more with leaded race gas.  With the Cobb Access Port you simply need to purchase the map from us and swap it over and you will have a 460HP track-monster on your hands.