June 14, 2021

Semi-Retired 2005 STi


This STi has a history. This car was owned by a guy who tracked it here and there. It had the prerequisite big wing and decals, but now it’s retired. But retired doesn’t mean it left it all at the track. Oh my no, it left nothing at the track…

Staring at you from within the bumper is a massive APS 525 front mount intercooler. That is 314 square inches of intercooler hanging out there! AND it’s good for 525 horsepower, but this car isn’t making 525 horsepower. No, it’s making 340 horsepower at the wheels on 91 octane. E85 in the tank brings that number to 380. Impressive considering this car was rated at 305 crank horsepower seven years ago. Behind that giant intercooler is a big Koyo radiator. Cooling is key everybody.

A Garrett 3076 ball bearing turbo sends hot, pressurized air through that massive intercooler core and into the two and a half liter mill. An AEM 3-Bar MAP sensor monitors the incoming air and dictates how much fuel the massive 1000cc Deatschwerks fuel injectors to spray into the cylinders. Those big injectors are in an Aeromotive fuel rail, and there’s an Aeromotive fuel pressure regulator between the fuel rail and the 255lph Walbro fuel pump. Not all that fuel gets used, but more on that later…

All of the air the turbo pressurizes isn’t used either, so a Tial blow off valve releases the excess air. The car is tuned at 20 lbs of boost, and a Tial wastegate helps keep boost levels stable.

17×9 Enkei NT03’s are sitting at all four corners, as are the Brembo calipers that came bolted to the car. Inside those calipers are Stoptech pads, and Stoptech lines feed Motul brake fluid to those pretty, gold calipers. The rear rotors are OEM, but the fronts are slotted Stoptech pieces.

This thing has some serious suspension pieces, being a former track car. JIC Magic coilovers hang at all four corners, and COBB sway bars are at either end. Also keeping the chassis flex to a minimum are a Cusco strut tower bar in the back and a Fuji Heavy Industries (Subaru’s parent company) strut tower bar in front.

Inside the cabin the US spec seats have been replaced with JDM STi Version 7 seats. Still OEM, and comfier than the stock seats. Thats a win/win situation. Behind those seats is a Sparco harness bar, but no harnesses to speak of at the moment. The old shift knob was taken off, and replaced with that stylish white Beat Rush unit.

This car was a track car, but it left none of its track capabilities behind when it became a street car. A fact that became very apparent when we went out for some rolling shots. Throw some BFG R1’s on this bad boy and it’ll do some work out at Miller.


Words and photos by Michael Chandler.

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