Quick shipment & delivery. Installation was simple to follow; however, when I started the car I received a check engine light and was very disappointed. Contacted AutoAnything customer service and asked for a refund. Fortunately, the CSR took her time asked if I would be willing to speak with a Hypertech representative to troubleshoot the install. Glad I did, because the gentleman at Hypertech got me on track & I couldn't be happier! Great power & engine response! Time will tell on gas mileage.