What car do you have? MY00 V6 STi
What engine is it? EJ20
What mods that may affect fuel? TBE
Whats the transmission, Auto/Manual? Manual
How many k's do you get to a full tank? 550 MAX. Average 420-460
What fuel do you use? Ultimate 98

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I had the loudest stereo in a wrx in WA. Until i hit a wall.