Don’t know that it made a difference but I made a cold air intake from dryer vent hose and dryer vent with louvers removed, zip tied to back of grill.
Biggest difference was installing the 5 Star Tune. Better acceleration, shifting, and all around performance. Gas mileage went up approximately 0.5 mpg but that’s not why I installed it, did it for the shifting and performance. Based on my subjective experience I would install the 5 Star Tune again.
Thor Forums
