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SPT Parts for the 2008 Impreza WRX


Toshiki Kanamori, Yoshikazu Watanabe, and Garrick Goh tested the SPT Power Pack
at AEM in Los Angeles.

SPT BEGAN DEVELOPING PERFORMANCE INTAKE AND EXHAUST COMPONENTS FOR THE 2008 SUBARU IMPREZA WRX 5-DOOR AS SOON AS PROTOTYPE VEHICLES WERE AVAILABLE.*

 

INTRODUCTIONS IN STAGES

 

Last May, Drive Performance got a behind-the-scenes look at testing some of these new SPT Parts. Subaru of America, Inc. (SOA) and Fuji Heavy Industries Ltd. (FHI) product development personnel met at Advanced Engine Management, Inc. (AEM), in Los Angeles to test SPT Power Pack prototypes. Development personnel included Toshiki Kanamori (General Manager, Accessory Development & Sourcing for SOA), Yoshikazu Watanabe (Assistant Manager, Overseas Accessories Planning & Development for FHI), and Garrick Goh (Performance Parts Project Engineering Manager for SOA).

 

EXPECTATIONS


The meeting began with Yoshikazu Watanabe delineating the process for testing the parts – first in California, then in Japan. They started with airflow, dynamometer, and sound testing of both the stock and AEM prototype components.

 


 

The testing itinerary included measuring the differences in the parts relative to such things as general engine mapping, boost, emissions, and idle at various engine speeds. To do so, four different configurations of intake and exhaust systems were installed in the WRX. Component configurations included:

  • Stock intake and exhaust systems
  • Prototype intake and stock exhaust systems
  • Stock intake and prototype exhaust systems
  • Prototype intake and exhaust systems

 

The tests took place in three locations. Airflow tests through stock and prototype SPT parts were handled in house at AEM. Dyno testing of the four configurations took place at Church Automotive Testing in Wilmington, California. Sound testing happened at a nearby airport.

 

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