MEK Automotive shows off a 509-hp, street-friendly build-up and a maniacal 857-hp STI combo ... Now rolling on 19-inch Volk ZE40 and Advan Neova, the upgrades do their best to fight for traction ...

The finishing touch is a Sunrise Yellow paint job which was never made available on the GRB STI but introduced ... and four-piston rears, while Volk Racing TE37 wheels in a wide 18x11-inch size ...

That said, the Subaru's 18-inch forged BBS wheels, bulging fenders ... 23/30/26 per EPA estimates), which outclass the STI's 21.6/24.9/23.0 (17/23/19 EPA), add efficient to the list.