Subaru WRX ECU Shootout 
 
 
 
 
 
 

 
"Power without compromise, that's what we like to see".  

Fast Fours and Rotaries Magazine  

 
 
 

 
 
 
 
Cost  
$1800 fully installed with dyno plots pre and post installation. MY99 models require the boost control solenoid to be replaced for better control of the increased boost. Time to install is about 2-3 hours. 

Background 
Danny runs a small workshop which is primarily used to help support and finance his rallying commitments (which he is passionate about). Danny also sells the Wolf3D system which he runs in his rally car (an imported STi). The Wolf3D system allows additional engine sensors and requires many hours of tuning and testing which is why it was not considered here. DMA tune all their cars on the 4WD dyno at the Frankston TAFE College. 

Features 
The Link is a complete replacement board for the factory unit and plugs straight into the existing connection mount. This means the car can be set back to standard in a few minutes by simply unplugging it and swapping back the factory ECU.  

The Link comes from Possum Bourne Motorsport (NZ) with the boost, ignition and air/fuel ratios maps preset. Danny merely adjusts the air/fuel ratios at full throttle, making them leaner to compensate for the higher RON fuel we run here in Oz (NZ only have 96 RON). Altering any of the maps or ECU parameters requires a pin code that only Danny knows. This prevents other tuners from changing the settings. 

The Link has 6 load and 16 RPM zones (every 500 RPM) for a total of 96 mappable zones.  

DMA have not tested the Link against ADR emissions but have never had problems with the EPA on any of the cars they have fitted the Links ECU to. 

DMA offer an unlimited warranty with the Link, such that any problems directly caused by it are covered. Danny must install and tune the ECU himself for the warranty to be effective however. The warranty also covers track work

 

 
ECU Shootout Main Page
Foreword / Intro / Testing Procedure / Microtech / Possum Link / Unichip 
MY98 - Unichip vs Microtech / MY99 - Unichip vs Possum Link 
Conclusion / Thanks