Subaru of America's in house performance division, STP (which stands for Subaru Performance Tuning), will reveal a custom-built Impreza WRX STI at the Las Vegas SEMA Show next week. The WRX STI gets all sorts of goodies from the SPT catalog such as a sportier exhaust system that boosts the 2.5-liter turbocharged boxer engine's output from 305 HP to 315 HP at 6,000 rpm with peak torque remaining stock at 290 lb.-ft. at 4,000 rpm and a turbo heat shield. To improve handling, SPT equipped the Impreza WS STI with a set of 19-inch Prodrive GT2 alloy wheels finished in Glitter Gold and wrapped in Michelin Pilot Sport A/S 245/35R19 performance tires while the car's suspension is upgraded with STI performance springs, an SPT strut tower brace and an SPT lower chassis brace.
Cosmetically, the tuned model is said to feature SPT billet oil cap and billet battery hold down, an STI front lip spoiler and SPT exhaust finishers.
Interior appointments include an SPT boost gauge, a media hub digital music integration system and an auto-dimming mirror with transflective display and HomeLink transmitter plus an STI shift knob and all-weather floor mats.
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