In part 4 of Project STi we got some pretty good results with some tuning by XS Engineering that nicely complemented our bolt-ons. However, we were stymied in our efforts to extract more power by a ...
Since its introduction to the U.S. in 2002, the Subaru Impreza WRX has been one of the most popular tuner cars in the country. With a four-cylinder turbocharged engine, all-wheel-drive drivetrain, ...
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