so my trip from school home is about 4 hours highway. i usually keep it at 28-2900 rpm i was thinking since thats under peak boost that it wouldn't effect my mileage. you guys think it would make a difference if i put it in stock rather than on pump with the GIAC?

 

i doubt you will see a difference during highway driving, i never do at least

 

I did a before and after on my way to philly to awe during the same day very precisely its about .5 -.8 mpg less. Worth imo to switch to stock, unless you plan on breaking 140mph on the way home, which I don't think you do since you concerned with mpg.

 

seeing as how you aren't boosting unless you put your foot in it and the wastegates close, i doubt you'll notice any gain.

 

cool. thanks for the responses guys