2003 Subaru WRX - Power Pages
| 2000 to 3500 HP average: 2 to 5 | 2000 to 3500 TQ average: 3 to 8 |
| 3500 to 5500 HP average: 3 to 18 | 3500 to 5500 TQ average: 2 to 15 |
| 5500 to redline HP average: 6 to 28 | 5500 to redline TQ average: 4 to 20 |
| Peak Horsepower: 191.4 | Peak Torque: 161.9 |
Pros
Let's just say our owner was blown away on how "that little blue thing" (as the owner of the vehicle called the TurboXS boost controller) can increase the output of the engine by 25 horsepower. We were also pleasantly surprised by how well the TurboXS boost controller was able to maintain boost pressure throughout the entire rpm band. We did raise the boost pressure from 14 to 16 psi but the difference was realized from 5000 to 7000 rpm. Unlike the factory boost controller, where boost pressure would take a nose dive at 5000 rpm from 14 psi to 9 psi, the TurboXS unit was able to maintain the preset boost pressure throughout. That is why we were able to gain 28 horsepower and 19 lb-ft of torque at redline.
Cons
We can't see any drawback to the TurboXS unit unless your car is still under warranty and the dealer finds out you did the modification.
Parts include
Manual boost controller, Allen key to adjust boost and instructions.
Tools required for install
Needle nose pliers and 12mm wrench
Dyno Notes
The TurboXS boost controller only retails for $129.00 and it was able to generate nearly 30 horsepower. What more can you ask for?
InstalL time: 10 min
By Jasper Chan
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