Reviewed By Jake N (Houston, TX) Reviewed for a 2008 Mitsubishi Lancer —4/12/2011 7:33 AM
With the stock NGK spark plugs the car runs great. I did notice an immediate improvement. It wasn't a huge improvement obviously but we noticed a 1-2 mile addition to our gas mileage and the throttle response was much quicker. An excellent buy for the money!