Top 12 Tuner Cars of the 21st Century

© Evan Griffey© Evan Griffey
Subaru WRX STI
Immediately identifiable by its distinct Boxer exhaust note, the STI was the Evo’s arch nemesis on the rally circuit. But the Subie faces more challenges in the tuning race. The more ECU-sensitive Subaru gets less out of its stock turbo but has a better starting point, since it is rated at 305 horsepower compared to the Evo’s 291 horses. The Subie’s EJ25 flat four is thirsty for boost and capable of developing 450- to 500-wheel horsepower on stock internals. Pay attention as the WRX received a face-lift every other year in the mid-2000s, so pick a grille that looks good and let loose the boost.

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