Subaru Impreza WRX STI (Import)

Who doesn't love an Impreza? We all do.

This one certainly looked the part. Subaru opted to add a wider body kit & large real spoiler, to differentiate between the standard WRX and the STI version you're looking at now.

Subaru Impreza STI WRX Unichip Installation Blog

The interior's colour-schemed in what i'm calling "Unichip Red" - a match made in heaven?

Out of the factory, the 2.5L engine produced 296HP & 300 ft-lbs of torque. But, with such aggressive stance & styling (and the sound it makes!), I don't blame the client for choosing a Unichip compliment them.

And it did exactly that.

Subaru Impreza wrx sti unichip install blog

If you know, then you know... 

The figures:

  • @ 3.5k RPM: 260 FT-LBS > 380 FT-LBS. (+120 FT-LBS)
  • @ 3.5K RPM: 150 HP > 260 HP. (+110 HP)
  • Peak power increase: +24.5 HP. 

Subaru Impreza STI 2010 unichip blog post

At idle, we were able to find an extra +100 ft-lbs, available as soon as the client hits the pedal.

+120 ft-lbs & +110 HP could be found at 3,500 RPM, completely transforming the way this Impreza drives. 


Unichip Features:

The Unichip is able to store up to 5 selectable maps, each distinctly different from each other. Anybody can get their vehicle tuned, and many competitor products offer multiple maps, too. 

Unichip Subaru WRX STI 2010 blog post

But none of them are Unichip Europe. And typically, these other products with multi map capability tend to have very similar maps - completely defeating the point of having them in the first place!


  • As this vehicle was an import, our tune was developed to meet UK emission standards.
  • Map Selection: Anti - Theft | Economy | Performance | Performance + | Race
  • Typical Unichip installations would keep the vehicle's stock ECU map. Because this failed to meet emission standards, it was left off.

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