Originally Posted by
bubbrubb
Yeah, MPG already went down dramatically. Im guessings its because of the heavier parts in the engine, and that the car isnt tuned to the parts. Im getting about 360-380 a fill up, before the build i was getting 420-440 a fill up.
it's probably because you are making more power and using more fuel, after you tune it you probably wont see numbers nearly as good as before