The 2.0L FA20 engine in the
The 2.0L FA20 engine in the base WRX has equal length headers, the STi still has the old 2.5L EJ with unequal length headers.
"Obviously you haven't done much homework on the 2015 STI because the engine still makes that trademark awesome rumble :) "
You can't judge a car that you haven't driven, or compare it to another car you haven't given, with such authority. Obviously he has driven the Evo X and the STi and prefers the STi.