Subaru MY03 STI Performance 


"On the road, it all means the APS STi is a more relaxing drive because you’re not constantly hunting back through the six-speed for a ratio that’s actually gonna spool up some herbs. The thing will actually accelerate in sixth now, which is really saying something."

Motor
Magazine 

 
 

 

2003 Model STI - Australian Specification
We are passionate about high performance for the All Wheel Drive Subaru. Drawing on 20 years of turbocharging and intercooler system design and production knowledge, our mission is to produce the very best high performance systems and components to significantly enhance MY03 STI engine power.

APS is proud to announce the latest in APS High Output Systems for the MY03 STI.
 

Complete High Output Systems

High performance with stealth

   

Individual Components

AIR INTAKE Systems & Components

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P/N APSWRX-HFA/01
Cold Air Intake System - 65mm
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P/N APSWRX-HFA/02
Cold Air Intake System - 70mm I.D.
Pod Air Intake System
INTERCOOLER Systems & Components
SR 375 Dual Entry Top Mount Intercooler System APS DR 525 Front Mount Intercooler System
APS DR 725 Front Mount Intercooler System
EXHAUST Systems & Components
Turbo to Tip Systems
Accessories
TURBOCHARGER Systems & Components
DR Series Rotated Mount Ball Bearing Turbochargers
APS Twin Scroll Rotated Mount Ball Bearing - 700 horsepower
SR Series Ball Bearing Turbochargers
aps turbo
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P/N 990-060-300
APS SR30 Series Ball Bearing Turbo aps turbo
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P/N 990-060-425
APS SR40 Series Ball Bearing Turbo
aps turbo
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P/N 990-060-650
APS SR56 Series Ball Bearing Turbo
SS Series Sleeve Bearing Turbochargers

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P/N 990-060-475
APS SS45 Series Sleeve Bearing Turbo
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P/N 990-060-460
APS SS42 Series Sleeve Bearing Turbo
ENGINE MANAGEMENT
Unichip engine management

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Unichip boost mapping
BLOW OFF VALVES
TMIC High Volume Dual Vent Blow Off Valve FMIC High Volume Dual Vent Blow Off Valve
FUEL SYSTEMS
DR Series FRP/03 Race Fuel System DR Series FRP/02 Auxiliary Injector Race Fuel System
Tumbler Valve Delete Manifold Housing - For Top Feed Injectors