After the WRX's debut in the US in 2002, the STi came along in 2004. The STi is a WRX tuned by STi (Subaru Technica International). Dont ask me why the "i" isnt capitalized. The STi has a 2.5L Turbocharged Flat-4 and pulls with about 300hp.
Parts available as of right now for the WRX STi:
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APS Exhaust Designed for 216 hp to 350 hp power levels. Designed to comply with EPA noise levels under 90 db. Very low exhaust noise emission at normal cruise speeds 35 mph to 75 mph. High flow turbine outlet - ductile iron for optimum exhaust gas flow and maximum component durability. |
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ZILLA 20G Turbo One of their tried and true turbos, this turbo is very well suited to the 2.5L engines. It is capable of spooling to 17.5 PSI before 4000 RPM with proper tuning and supporting mods, yet can deliver over 400HP! |
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Cobb Sport Springs Lowering "Tarmac' Springs for Impreza. These springs feature more aggressive spring rates tuned for autocross and track use. Generally considered by STi to be too aggressive for use with any stock strut. |
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Cusco Swaybar 35mm rear swaybar. Can be applied on Impreza, Legacy, and Forester |
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Tein Flex Coilovers The TEIN Type FLEX damper kit was designed to provide driving comfort and sports performance with its full-length adjustment system. TEIN has incorporated separate height and preload adjustments, which allows you to have various set-ups to meet different road conditions. |
Specials
**New**
STi intercooler, new in box only $215.95. Great price for this usually expencive OEM part.