Reviewed By Robert H (DENVER, CO) Reviewed for a 2014 GMC Sierra —1/24/2016 6:05 AM
Better sound improvement during acceleration than I expected; it actually sounds like a truck now. Installation is pretty easy, as long as you don't break the retaining clip on the mass air sensor when removing... Gas mileage - jury is still out on this as I only have about 1+ tank of gas through it since the change. So far I don't see an improvement for city driving, but I did not expect much in that area. Happy thus far with the product.