The HEADER shouldnt make any noticable difference. but the difference between 21mpg and 26-27 is pretty big so you HAVING fun is making a world of difference. You might not think you are beating on it alot, but that number is very low (21MPG).
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TRD Supercharger
Custom 2 Tone Paint
Kaminari Body Kit
Enkei wheels
Custom Fiberglass trunk
Navigation
Corbeau A4 Seats
AND MUCH MORE
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