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2006 Subaru Impreza WRX STI
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Date Posted
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1096
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Sat December 23, 2006
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Description:
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2006 Subaru Impreza WRX STI
The Subaru Impreza WRX STI (formerly STi, officially changed in 2006) is the highest standard-edition trim in the Subaru Impreza line.
In the late 1980's, Subaru created the Subaru Tecnica International (STI) division to coordinate development for the FIA World Rally Championship and other motorsports activities. After the company had grown, the division was used to create high-performance consumer versions of the Subaru Impreza WRX, an AWD car with a turbocharged flat-4 engine, leading to the development of the Impreza WRX STi. Subaru has used a race-prepared version of the WRX STI as its rally platform since the model trim's creation.
GD chassis
In 2001, the Impreza line received a complete update. The chassis was stiffened so that it had 120% torsional stiffness increase. The WRX STi gained 17" x 7.5" alloy wheels over the previous 16" x 7" wheels. The 5 speed transmission (reputed to be one of the car's weakpoints) was changed to an STi engineered 6 speed manual transmission. The engine was retained from the Version 6 STi and still retains the semi-closed deck block and is still labeled as the EJ207. However, the turbochargers are IHI models. The interior was updated with a STi logo on the gauge. The STi's gauge also has a red shift light. The STi's and optioned Type RA STi have received Brembo 4 pot front and 2 pot rear brakes while the bare-bones Type RA STi still carried the Subaru 4 pot front and 2 pot rear brakes. Externally, the STis had larger hoodscoops and had foglight covers with STi embossed on them. The DCCD was updated so it can work with anti-lock brakes. During braking, when the ABS is on, the DCCD will set itself to open-mode (no locking).
The version nomenclature was dropped from the name. To distinguish between the years, Japanese and other auto-enthusiasts often refer to the chassis as GDB (the STi had a 'B' where as the regular WRX had an 'A') revision A to F where F is the current (2006) version.
Japanese-spec
Rev. A (2001): In 2001, the WRX STi received the aforementioned updates. The WRX Type RA STi was produced. The STi wagon was still produced but it's engine only produced 260 PS (191 kW). The STi foglight covers had white STi lettering on them.
The WRX Type RA STi was used for the Group N homologation.
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Keywords:
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2006 Subaru Impreza WRX STI
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Subaru
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