Subaru has announced plans to release a limitededition model named WRX STI TC 380 Details remain few and far between, but we think the nameplate corresponds to a 380horsepower variant of the company's top sedan The company explains it enlisted the help of World Rally Championship (WRC) driver Toshihiro Arai to develop the WRX STI TC 380 19 Subaru WRX STI S9 Subaru The forged pistons and rods provide a strong foundation for the power increases, which come courtesy of a larger turbocharger with a 65mm compressor wheel and a 56mm turbine wheel That makes it an exact match for the turbocharger in the WRX STI TC 380 released in Japan last year This model uses the HKS GT III The STI will likely follow the standard WRX by a few months, and both models are poised to have a price uptick We'd wager somewhere around $30,000 for the WRX's base price and upward of $40,000 It's called the WRX STI TC 380, and as the name suggests, it makes 380 hp If you do the math, that's slightl...