I've used airaid products for years so I figured let's do it again. My Lumina is by no means a powerhouse but I'm impressed with the change in attitude after installation. Seat of the pants impression is good and mileage after first full tank is up nearly 1 mpg, and that's with the air conditioning on most of the time. This is my 66k daily "work beater" so I'm not looking for performance, even though it seems a bit peppier. Airaid has yet to let me down.